Merge pull request #30 from pi-engine/master

Merge from pi-engine
Merge pull request #31 from pi-engine/master

Updated docs
Merge pull request #32 from pi-engine/master

Doc updates
Merge pull request #33 from pi-engine/master

Updated docs
Merge pull request #34 from pi-engine/master

Updated docs
Merge pull request #35 from pi-engine/master

Merge from pi-engine
Merge pull request #36 from pi-engine/master

Update original repo
Merge remote-tracking branch 'upstream/master'
Fixed bug that captcha can not be displayed
Default theme style refactoring
Code cleaning up
Refactored view helpers to allow for attributes: Backbone, Bootstrap, Css, JQuery, Js
CSS class/ID name standardization in process: prefixed with "pi-" and module identifier
Fixed typos for asset canonization
Default theme refactor in process
Organized theme CSS to style.css for generic, front.css for front pages and admin.css for admin area
CSS CS in process
Fixes dependency of backbone and underscore
Build User APIs with avatar factory
Added syntactic sugar for escaper: '_escape' in lib/Pi/Utility/Filter.php