Merge pull request #1 from EzioBallarin/master

Z-index and non-logged in user fixes
Beta update and fixing bugs

Fixed a problem with classifications.
Added a remove option for classifications.
Tasks no longer need to be on a page or post (works for most themes,
working on the others).
Removed Parents (hierarchical) from tasks.
Added Tags to tasks.
Default ranks fix

Changed default ranks and added a button to reset to defaults. Added
comments and documentation in respective files.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/EzioBallarin/game-on