HUE-1929 [core] Create jHueDelayedInput plugin

Created new plugin and refactored most of the old calls
Removed usued alert and validation plugins
HUE-1906 [beeswax] Better UX for the goto columns on the result page

Made column tab prettier
Removed jHueTableExtender from the result table
Added column filter when more than 10 columns
HUE-1898 [oozie] SLA graph easier to understand or manipulate

Fixed X axis label color and added click handler
Added padding to Y axis
[about] Page becomes blank when check config finishes

Caused by font awesome spinner being removed from the page.
Simply moving it to a place that it can't be seen.
HUE-1928 [beeswax] HiveServer2 supports pass-through LDAP authentication

Add an optional LDAP password ini property for the hue user.
The username of the hue user should come from the keberos ticket.
Added test to check open session with HS2 in regular mode and with
LDAP passthrough
HUE-1913 [impala] invalidate metadata breaks the editor

Add an empty column list instead of null.
Hide chart and column tabs when no result
(better to hide for no result instead of no columns for now and an empty
query has no results so no results.column)