Devuan: update all install scripts from debian (#390)

* devuan: pull fail2ban updates from debian installer

* devuan: merge updates to postgresql.sh from debian

* devuan: pull updated resources/backup scripts from debian

* devuan: merge and update php installer scripts

* devuan: merged changes to reset_admin_password.sh from debian

* devuan: fix release name typo for chimaera

* devuan: merge iptables changes from debian

* devuan: merge nginx changes from debian

* devuan: merge letsencrypt.sh from debian

* devuan: merge main install scripts and config from debian

* devuan: simplify sngrep install, its in all maintained releases

* devuan: merge main install script updates from debian

* devuan: finish.sh: use /usr/sbin/service for restart

* devuan: postgresql.sh: fix syntax error

* devuan: update and unify sysvinit setup

there is no sysvinit package available from freeswitch,
usethe same init and defaults file for package and source install

* devuan: add equvalent debian releasesto environment.sh

* devuan: merge changes to switch* from debian

* devuan: switch: use os_codenam_debian to add repos

* devuan: olny stop ufw if it was installed

* devuan: update config.sh defaults

* devuan: remove systemd-specifics from switch package installation

* devuan: install postgres before freeswitch

* devuan: removed libyuv-dev installation, embedded in freeswitch

* devuan: fix failing move of freeswitch music

* devuan: removed another libyuv-dev installation, embedded in freeswitch

* devuan: revert freeswitch script dir setting in /etc/default

* devuan: Enable mod_av for the install. (#389)

* devuan: merge improved nginx ssl settings (#388)

devuan/resources/sngrep.sh

@@ -18,8 +18,5 @@ if [ ."$cpu_architecture" = ."arm" ]; then
 	cd /usr/src/sngrep && make install
 else
 	#package install
-	echo 'deb http://packages.irontec.com/debian jessie main' > /etc/apt/sources.list.d/sngrep.list
-	wget http://packages.irontec.com/public.key -q -O - | apt-key add -
-	apt-get -q update
 	apt-get -y -q install -y --force-yes sngrep
 fi