Use set -x not set -e by default for postinst, to avoid dpkg bailing

debian/postinst

@@ -1,14 +1,10 @@
 #!/bin/bash
 #postinst script for airtime
 
-set -e
+set -x
 
 . /usr/share/debconf/confmodule
 
-if [ "$DPKG_DEBUG" = "developer" ]; then
-    set -x
-fi
-
 wwwdir="/usr/share/airtime"
 tmpdir="/var/lib/airtime/tmp"
 configdir="/etc/airtime"
@@ -16,7 +12,7 @@ includefile="${configdir}/apache.conf"
 a2tplfile="${configdir}/apache.vhost.tpl"
 phpinifile="${configdir}/airtime.ini"
 OLDVERSION="$2"
-NEWVERSION="2.1.3"
+NEWVERSION="2.1.4"
 
 case "$1" in
   configure|reconfigure)