Bug fixes

nav correction

nav correction

Critical update!

This release fixes a critical error in the right sidebar margin - when both right sidebars were enabled there was no margin. To fix this properly I have swapped the Right sidebars, so now the true Right sidebar is on the far right, and Right_2 is to the left of it (when enabled) so you will need to reset your blocks.

* Added logic that checks whether installation requirements are met and suggests solutions if not
* Made alphanumeric restriction on user/group names configurable
* Made restriction on changes to user/group names configurable

- #279610 : make Zemanta available when editing fix by ddyrr
- Loader.js file is transfered on cron run if it does not exist yet

changes since the last alpha release:
* added upgrade procedure from workflow-ng
* ported system module integration
* added an initial README
* added generic actions for intelligently saving variables and adding new variables
* added a number and a boolean data type
* diverse small fixes and improvements