Initial version of OAuth2 module, need testing, docs, translations.
Added triggers:
- System/User/del_all_sessions
- System/User/construct/before
- System/User/construct/after
Small other fixes.

System version 0.202
modules:
Cron 0.004
Blogs 0.026
HybridAuth 2.1.1-cs7
OAuth2 0.002
Static_pages version 0.022
plugins:
TinyMCE 3.5.8-cs4