#36 Allow user to update the core from back-end

- You'll need repacking plugin and install again to update manifest in
database
- Please do not do update because update server is not updated just for
testing
#97 RTL language

Frontend dev please add your RTL css file into ZO2_PLUGIN_URL .
'/assets/css/rtl.css'
# fix loadLanguage

Please do follow Joomla! standard here
http://docs.joomla.org/J2.5:Creating_a_Plugin_for_Joomla
Merge pull request #124 from jooservices/master

#36 #97 and loadLanguage issue