Bug#760032: asterisk-config-custom visible

[Geert Stappers]

> 
> And if it is allready available it should be more visible / accessable.
> 

--- a/debian/control
+++ b/debian/control
@@ -278,3 +278,6 @@ Description: Configuration files for Asterisk
  Asterisk is an Open Source PBX and telephony toolkit.
  .
  This package contains the default configuration files of Asterisk.
+ .
+ Script 'asterisk-config-custom' helps to create
+ 'asterisk-config-custom' packages.