Merge pull request #55 from km4054/master

Automatic user online detection
Merge pull request #56 from km4054/master

Last_online fix and some code cleanup
Merge pull request #57 from km4054/master

Users upload images by URL
fblogin
Merge pull request #58 from domc/FBlogin

fblogin
disqus_ver_1
Merge pull request #59 from domc/disqus

disqus_ver_1
Test FB login