HUE-2296 [fb] The pagination is not working

Fixed hashchange and load on missing path
Fixed problem with Dropzone double init on path change
Fixed Dropzone overlay css
[security] Fix Hive server list of privileges
[security] Kerberos support
[security] Added modify role on create modal
HUE-2272 [fb] Improve UX of Copy/Move modal windows

refactoring drag and drop experience
removed modal, added fixed message bar, added css updates
refactored handlers in options
removed queuecomplete and moved to a listener on the instantiated dropzone to properly capture the state of the queue
status bar removed only after the queue is empty as opposed to first success or canceled item in queue
Added fix for displaying separate file percentages; removal of cancel button for items that are completed
HUE-2298 [dbquery] Move navigation bar to the left and rename it to Assist

Changed top bar to left side bar
Changed dropdowns to chosen select
HUE-2297 [impala] Assist databases might be duplicated

Removed double call to reset navigator on refresh click