added format_currency and added options to all currency fields

manufacturing/doctype/bom/bom.txt

@@ -1,8 +1,8 @@
 [
  {
-  "creation": "2013-01-10 16:34:16", 
+  "creation": "2013-01-22 15:11:38", 
   "docstatus": 0, 
-  "modified": "2013-01-22 14:55:57", 
+  "modified": "2013-01-23 17:00:25", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -150,7 +150,7 @@
  {
   "doctype": "DocField", 
   "fieldname": "total_cost", 
-  "fieldtype": "Currency", 
+  "fieldtype": "Float", 
   "label": "Total Cost", 
   "read_only": 1
  }, 
@@ -162,14 +162,14 @@
  {
   "doctype": "DocField", 
   "fieldname": "raw_material_cost", 
-  "fieldtype": "Currency", 
+  "fieldtype": "Float", 
   "label": "Total Raw Material Cost", 
   "read_only": 1
  }, 
  {
   "doctype": "DocField", 
   "fieldname": "operating_cost", 
-  "fieldtype": "Currency", 
+  "fieldtype": "Float", 
   "label": "Total Operating Cost", 
   "read_only": 1
  }, 

manufacturing/doctype/bom/bom_list.js

@@ -36,8 +36,7 @@ wn.doclistviews['BOM'] = wn.views.ListView.extend({
 		{
 			width: '20%', 
 			content: function(parent, data) {
-				$(parent).html(sys_defaults.currency + " " 
-					+ fmt_money(data.total_cost));
+				$(parent).html(format_currency(data.total_cost));
 			},
 			css: {'text-align': 'right'},
 		},