* offer choice between maint/dev branch
* make batctl optional upon user request
* upgrade src version
* fix EXTRA_CLFAGS
Thanks to Linus Luessing for his help.
git-svn-id: svn://svn.openwrt.org/openwrt/packages@19356 3c298f89-4303-0410-b956-a3cf2f4a3e73