[security] Fix for multiple occurrences of groups on the group list
[security] Support for linking to Roles or Edit section
[security] Support for checkboxes on the tree
[security] Make the app optional
HUE-2259 [jb] Update display of metadata on Job Browser

Made the dynamic properties on configuration alphabetically ordered
HUE-2258-mrDecimals

Casted map and reduce percent complete values to integers before returning values to templates
[security] Add or remove groups in a role
[security] Add save and undo button to HDFS acls