Small refactor.
Fix problem with registration new users.
Add support for disabling users.
* Disable registered users which are currently not in ci yaml.
Add annotations
Add gerrit group into data bag and minor fixes.
Fixes for mysql root password and users updates.
Fix user checks.
Add nil exception handling
Results of unsuccessfuly merging branches.
* Lost history of changes.
* Summary: added HTTP and CAS methods, add support of user groups, fix a lot of bugs.
Fix minor bugs with apache.
Minor fix with file mode.
Merge pull request #1 from alff/master

New version