* merge/add handover procedure for the access stratum (enabled with the -H), status: experimental.

* fix a bug in BSR computation
* add a python script to launch meld if the diff3 in subvsersion/config file is set to the targets/SCRIPTS/svn-merge-meld.py
* pre-ci passed (100%) 


git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4309 818b1a75-f10b-46b9-bf7c-635c3b92a50f