HUE-2192 [core] Create parameter to choose LDAP username for HS2
[core] Support Resource Manager HA active / standby switching

Used to only failover when the RM was going down.
Invalidate the current RM API when switching RM.
HUE-2178 [core] Refactor and extract as a lib search layout

Extracted common column, row and widget js
Moved basic toolbar and skeleton layout to common dashboard
HUE-2122 [impala] Smarter db and table cache

Cached the db list too
Bumped cached time expiration to 7 days
[metastore] Support of UTF-8 in the comments and names of tables

if value.contains(chinese):
    print "'ascii' codec can't decode byte 0xe4 in position 0: ordinal not in range(128)"
HUE-2076 [core] Create retina icons/logos

Retinified all the logos and images
HUE-2209 [core] Install examples links should not autoscroll to the top of the page

Changed hashtag to void
HUE-2207 [search] Timeline date changes are not saved when edited manually

Fixed a datetime parsing check and added a manual onchange even to the datepicker fields
[hive] Fixed Japanase translation issues
HUE-2211 [search] Twitter and Jobs example do not load properly

Forced Slider binding to parse strings to floats
HUE-2119 [filebrowser] Show extended permission in mode
Merge remote-tracking branch 'remotes/origin/testing' into testing