Fixed bug in editor loader to avoid duplication
Code cleaning up for form rendering
Merge pull request #1286 from voltan/develop

Improve templates
Merge branch 'develop' of https://github.com/pi-engine/pi into develop
Added method to access logo url in asset service
Fixed cache can't be flushed when memcached used
Added navigation pages to demo module
Refactoring comment form
Refactoring editors
Refactoring editors
Merge pull request #1287 from linzongshu/develop

Fixed cache can't be flushed when memcached used