pjproject2:
 * switch back to the official version of pjproject from [http://www.pjsip.org/ pjsip.org], all patches from [https://github.com/asterisk/pjproject asterisk-fork] of pjproject have been [https://github.com/asterisk/pjproject/commit/88052752c6d52d11f9c70084c6d9af681f78d137 accepted] upstream, there is no need to use the asterisk-fork anymore
 * bump version to 2.2.1
 * refs #706


git-svn-id: file:///var/svn/freetz/trunk@11916 149334a1-2f27-0410-a3b9-fc62619ac1e6