HUE-1944 [oozie] Generic action is broken

The generic action can now be added without a js error.
HUE-1907 [impala] Date result fields are not jsonifiable

Difficult to reproduce/track the root cause.
Might be releated to a funky Chrome
HUE-1686 [beeswax] Saving results should not re-execute the query

Save as CSV format only.
HUE-1889 [beeswax] Slickier editor layout

Fixed results size and scroll
Improved infinite scroll
The editor now expands itself for queries bigger than 7 lines
Improved recent queries behavior
HUE-1889 [beeswax] Slickier editor layout

Fixes the table heading when resizing the editor
Fixes navigator links
[impala] Some URL refer to neeswax instead of impala

Downloading a result
Saving an Impala query should not redirect to Beeswax
[impala] Specific query configuration can be overriden

Also propose an Impala property instead of Beeswax
[impala] Downloading a result not cached anymore should fail more gracefully
HUE-1946 [beeswax] Can't select and execute more than one query

The previous statement of a multi query can be closed so the previous
result can be expired.
HUE-1686 [beeswax] Fix export result to HDFS test cases
HUE-1943 [oozie] Convert to descision node can lose all the nodes
HUE-1889 [beeswax] Slickier editor layout

Clicking on history now loads the design by default
Forced to use one spinner per codemirror autocomplete
[impala] Support Data sample even without metastore app permissions

Added an API in Beeswax
Impala does not support `DB.TABLE` syntax
New query button should work with impala only