Merge pull request #782 from franckstauffer/fix

Various fixes
Comments and cleanup.
Added Functions inherited from parent topics in Functions manager.
Fixed JavaScript syntax error.
Merge pull request #783 from fredericbonjour/Admin

Added Functions inherited from parent topics in Functions manager.
HHVM Compatibility - Core and Plugins

Fixes several issues related to class resolution (reported issue
facebook/hhvm#1340)
Fixes func_get_args() call (reported issue facebook/hhvm#1027)