[packages] add mcabber 

mcabber is a small Jabber console client.
 mcabber includes features such as SASL/SSL/TLS support, MUC (Multi-User Chat) 
support,   history logging, command completion, OpenPGP encryption, 
OTR (Off-the-Record  Messaging) support, dynamic modules and external action triggers.

Signed-off-by: Peter Wagner <tripolar@gmx.at>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@38585 3c298f89-4303-0410-b956-a3cf2f4a3e73