diff --git a/erpnext/accounts/report/sales_register/sales_register.py b/erpnext/accounts/report/sales_register/sales_register.py
index 3cc2f915268..caf1c5f9eec 100644
--- a/erpnext/accounts/report/sales_register/sales_register.py
+++ b/erpnext/accounts/report/sales_register/sales_register.py
@@ -70,6 +70,7 @@ def _execute(filters, additional_table_columns=None, additional_query_columns=No
 			if tax_acc not in income_accounts:
 				tax_amount_precision = get_field_precision(frappe.get_meta("Sales Taxes and Charges").get_field("tax_amount"), currency=company_currency) or 2
 				tax_amount = flt(invoice_tax_map.get(inv.name, {}).get(tax_acc), tax_amount_precision)
+				total_tax += tax_amount
 				row.append(tax_amount)
 
 		# total tax, grand total, outstanding amount & rounded total
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 4d6e22e1915..013e56db0e3 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -1097,6 +1097,8 @@ def get_supplier_block_status(party_name):
 @frappe.whitelist()
 def update_child_qty_rate(parent_doctype, trans_items, parent_doctype_name):
 	data = json.loads(trans_items)
+	sales_doctypes = ['Sales Order', 'Sales Invoice', 'Delivery Note', 'Quotation']
+
 	for d in data:
 		child_item = frappe.get_doc(parent_doctype + ' Item', d.get("docname"))
 
@@ -1118,18 +1120,22 @@ def update_child_qty_rate(parent_doctype, trans_items, parent_doctype_name):
 				#  if rate is greater than price_list_rate, set margin
 				#  or set discount
 				child_item.discount_percentage = 0
-				child_item.margin_type = "Amount"
-				child_item.margin_rate_or_amount = flt(child_item.rate - child_item.price_list_rate,
-					child_item.precision("margin_rate_or_amount"))
-				child_item.rate_with_margin = child_item.rate
+
+				if parent_doctype in sales_doctypes:
+					child_item.margin_type = "Amount"
+					child_item.margin_rate_or_amount = flt(child_item.rate - child_item.price_list_rate,
+						child_item.precision("margin_rate_or_amount"))
+					child_item.rate_with_margin = child_item.rate
 			else:
 				child_item.discount_percentage = flt((1 - flt(child_item.rate) / flt(child_item.price_list_rate)) * 100.0,
 					child_item.precision("discount_percentage"))
 				child_item.discount_amount = flt(
 					child_item.price_list_rate) - flt(child_item.rate)
-				child_item.margin_type = ""
-				child_item.margin_rate_or_amount = 0
-				child_item.rate_with_margin = 0
+
+				if parent_doctype in sales_doctypes:
+					child_item.margin_type = ""
+					child_item.margin_rate_or_amount = 0
+					child_item.rate_with_margin = 0
 
 		child_item.flags.ignore_validate_update_after_submit = True
 		child_item.save()
diff --git a/erpnext/controllers/queries.py b/erpnext/controllers/queries.py
index 241d3ab7c98..f795f35ed33 100644
--- a/erpnext/controllers/queries.py
+++ b/erpnext/controllers/queries.py
@@ -152,6 +152,20 @@ def tax_account_query(doctype, txt, searchfield, start, page_len, filters):
 def item_query(doctype, txt, searchfield, start, page_len, filters, as_dict=False):
 	conditions = []
 
+	#Get searchfields from meta and use in Item Link field query
+	meta = frappe.get_meta("Item", cached=True)
+	searchfields = meta.get_search_fields()
+
+	if "description" in searchfields:
+		searchfields.remove("description")
+
+	columns = [field for field in searchfields if not field in ["name", "item_group", "description"]]
+	columns = ", ".join(columns)
+
+	searchfields = searchfields + [field for field in[searchfield or "name", "item_code", "item_group", "item_name"]
+		if not field in searchfields]
+	searchfields = " or ".join([field + " like %(txt)s" for field in searchfields])
+
 	description_cond = ''
 	if frappe.db.count('Item', cache=True) < 50000:
 		# scan description only if items are less than 50000
@@ -162,17 +176,14 @@ def item_query(doctype, txt, searchfield, start, page_len, filters, as_dict=Fals
 			concat(substr(tabItem.item_name, 1, 40), "..."), item_name) as item_name,
 		tabItem.item_group,
 		if(length(tabItem.description) > 40, \
-			concat(substr(tabItem.description, 1, 40), "..."), description) as decription
+			concat(substr(tabItem.description, 1, 40), "..."), description) as description,
+		{columns}
 		from tabItem
 		where tabItem.docstatus < 2
 			and tabItem.has_variants=0
 			and tabItem.disabled=0
 			and (tabItem.end_of_life > %(today)s or ifnull(tabItem.end_of_life, '0000-00-00')='0000-00-00')
-			and (tabItem.`{key}` LIKE %(txt)s
-				or tabItem.item_code LIKE %(txt)s
-				or tabItem.item_group LIKE %(txt)s
-				or tabItem.item_name LIKE %(txt)s
-				or tabItem.item_code IN (select parent from `tabItem Barcode` where barcode LIKE %(txt)s)
+			and ({scond} or tabItem.item_code IN (select parent from `tabItem Barcode` where barcode LIKE %(txt)s)
 				{description_cond})
 			{fcond} {mcond}
 		order by
@@ -182,6 +193,8 @@ def item_query(doctype, txt, searchfield, start, page_len, filters, as_dict=Fals
 			name, item_name
 		limit %(start)s, %(page_len)s """.format(
 			key=searchfield,
+			columns=columns,
+			scond=searchfields,
 			fcond=get_filters_cond(doctype, filters, conditions).replace('%', '%%'),
 			mcond=get_match_cond(doctype).replace('%', '%%'),
 			description_cond = description_cond),
@@ -280,22 +293,31 @@ def get_batch_no(doctype, txt, searchfield, start, page_len, filters):
 		"page_len": page_len
 	}
 
+	having_clause = "having sum(sle.actual_qty) > 0"
+	if filters.get("is_return"):
+		having_clause = ""
+
 	if args.get('warehouse'):
-		batch_nos = frappe.db.sql("""select sle.batch_no, round(sum(sle.actual_qty),2), sle.stock_uom, concat('MFG-',batch.manufacturing_date), concat('EXP-',batch.expiry_date)
-				from `tabStock Ledger Entry` sle
-				    INNER JOIN `tabBatch` batch on sle.batch_no = batch.name
-				where
-					batch.disabled = 0
-					and sle.item_code = %(item_code)s
-					and sle.warehouse = %(warehouse)s
-					and (sle.batch_no like %(txt)s
-					or batch.manufacturing_date like %(txt)s)
-					and batch.docstatus < 2
-					{0}
-					{match_conditions}
-				group by batch_no having sum(sle.actual_qty) > 0
-				order by batch.expiry_date, sle.batch_no desc
-				limit %(start)s, %(page_len)s""".format(cond, match_conditions=get_match_cond(doctype)), args)
+		batch_nos = frappe.db.sql("""select sle.batch_no, round(sum(sle.actual_qty),2), sle.stock_uom,
+				concat('MFG-',batch.manufacturing_date), concat('EXP-',batch.expiry_date)
+			from `tabStock Ledger Entry` sle
+				INNER JOIN `tabBatch` batch on sle.batch_no = batch.name
+			where
+				batch.disabled = 0
+				and sle.item_code = %(item_code)s
+				and sle.warehouse = %(warehouse)s
+				and (sle.batch_no like %(txt)s
+				or batch.manufacturing_date like %(txt)s)
+				and batch.docstatus < 2
+				{cond}
+				{match_conditions}
+			group by batch_no {having_clause}
+			order by batch.expiry_date, sle.batch_no desc
+			limit %(start)s, %(page_len)s""".format(
+				cond=cond,
+				match_conditions=get_match_cond(doctype),
+				having_clause = having_clause
+			), args)
 
 		return batch_nos
 	else:
diff --git a/erpnext/hooks.py b/erpnext/hooks.py
index a067e28747e..0753c58566e 100644
--- a/erpnext/hooks.py
+++ b/erpnext/hooks.py
@@ -233,7 +233,6 @@ scheduler_events = {
 	],
 	"daily": [
 		"erpnext.stock.reorder_item.reorder_item",
-		"erpnext.setup.doctype.email_digest.email_digest.send",
 		"erpnext.support.doctype.issue.issue.auto_close_tickets",
 		"erpnext.crm.doctype.opportunity.opportunity.auto_close_opportunity",
 		"erpnext.controllers.accounts_controller.update_invoice_status",
@@ -252,6 +251,7 @@ scheduler_events = {
 		"erpnext.projects.doctype.project.project.send_project_status_email_to_users"
 	],
 	"daily_long": [
+		"erpnext.setup.doctype.email_digest.email_digest.send",
 		"erpnext.manufacturing.doctype.bom_update_tool.bom_update_tool.update_latest_price_in_all_boms"
 	],
 	"monthly_long": [
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index 437f1694b91..0ed2c86b4c4 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -38,9 +38,11 @@ class BOM(WebsiteGenerator):
 			names = [d[-1][1:] for d in filter(lambda x: len(x) > 1 and x[-1], names)]
 
 			# split by (-) if cancelled
-			names = [cint(name.split('-')[-1]) for name in names]
-
-			idx = max(names) + 1
+			if names:
+				names = [cint(name.split('-')[-1]) for name in names]
+				idx = max(names) + 1
+			else:
+				idx = 1
 		else:
 			idx = 1
 
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 5b732779119..1925b6ad5a0 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -318,7 +318,7 @@ frappe.ui.form.on("Work Order", {
 	},
 
 	project: function(frm) {
-		if(!erpnext.in_production_item_onchange) {
+		if(!erpnext.in_production_item_onchange && !frm.doc.bom_no) {
 			frm.trigger("production_item");
 		}
 	},
diff --git a/erpnext/projects/doctype/task/task.json b/erpnext/projects/doctype/task/task.json
index b7f547dbcaf..e1ef1366c35 100644
--- a/erpnext/projects/doctype/task/task.json
+++ b/erpnext/projects/doctype/task/task.json
@@ -713,7 +713,7 @@
    "depends_on": "", 
    "fetch_if_empty": 0, 
    "fieldname": "depends_on_tasks", 
-   "fieldtype": "Data", 
+   "fieldtype": "Long Text", 
    "hidden": 1, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
@@ -1433,4 +1433,4 @@
  "track_changes": 0, 
  "track_seen": 1, 
  "track_views": 0
-}
\ No newline at end of file
+}
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index 17fad54453b..d29750950d7 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -1422,6 +1422,11 @@ erpnext.TransactionController = erpnext.taxes_and_totals.extend({
 				'item_code': item.item_code,
 				'posting_date': me.frm.doc.posting_date || frappe.datetime.nowdate(),
 			}
+
+			if (doc.is_return) {
+				filters["is_return"] = 1;
+			}
+
 			if (item.warehouse) filters["warehouse"] = item.warehouse;
 
 			return {
diff --git a/erpnext/selling/doctype/sales_order/sales_order.js b/erpnext/selling/doctype/sales_order/sales_order.js
index 98d62369ff2..bbfa9746de2 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.js
+++ b/erpnext/selling/doctype/sales_order/sales_order.js
@@ -142,7 +142,7 @@ erpnext.selling.SalesOrderController = erpnext.selling.SellingController.extend(
 
 				// delivery note
 				if(flt(doc.per_delivered, 6) < 100 && allow_delivery) {
-					this.frm.add_custom_button(__('Delivery'),
+					this.frm.add_custom_button(__('Delivery Note'),
 						function() { me.make_delivery_note_based_on_delivery_date(); }, __("Make"));
 
 					if(["Sales", "Shopping Cart"].indexOf(doc.order_type)!==-1){
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note_list.js b/erpnext/stock/doctype/delivery_note/delivery_note_list.js
index 6fc51ecdd9d..0ae7c37b3f8 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note_list.js
+++ b/erpnext/stock/doctype/delivery_note/delivery_note_list.js
@@ -6,9 +6,9 @@ frappe.listview_settings['Delivery Note'] = {
 			return [__("Return"), "darkgrey", "is_return,=,Yes"];
 		} else if (doc.status === "Closed") {
 			return [__("Closed"), "green", "status,=,Closed"];
-		} else if (doc.grand_total !== 0 && flt(doc.per_billed, 2) < 100) {
+		} else if (flt(doc.per_billed, 2) < 100) {
 			return [__("To Bill"), "orange", "per_billed,<,100"];
-		} else if (doc.grand_total === 0 || flt(doc.per_billed, 2) == 100) {
+		} else if (flt(doc.per_billed, 2) == 100) {
 			return [__("Completed"), "green", "per_billed,=,100"];
 		}
 	},