asterisk:
 * bump version to [http://downloads.asterisk.org/pub/telephony/asterisk/releases/asterisk-11.5.0-rc2-summary.html 11.5.0-rc2]
 * update to the latest revision from asterisk-11-branch (394173)
 * refs #706


git-svn-id: file:///var/svn/freetz/trunk@10798 149334a1-2f27-0410-a3b9-fc62619ac1e6