Added version to all files, create .new Custom file if already there

Templates/custom.pm.tem

@@ -2,11 +2,9 @@
 # Routines to be editted by the developer to provide validation for parameters
 # and provison of the control data for table(s)
 #
-#$cdb=$main::cdb;
-#$adb=$main::adb;
-#$ndb=$main::ndb;
-#$hdb=$main::hdb;
-#$ddb=$main::ddb;
+#
+# Generated by SM2Gen version:${version} 
+#
 
 use esmith::util;
 use esmith::HostsDB;