[search] Show other collection caret only if more than one collection

Fix some permission tests
HUE-1848 [metastore] Watch query page with the new API

Remove deprecated views.
remove watch_query.
Update execute_directly view to not use contexts.
Should re-add contexts later.
No changes to metastore required.
Fix tests as well.
HUE-1864 [beeswax] download CSV doesn't work if design was never saved
HUE-1863 [dbquery] Explain query doesn't work correctly
HUE-1869 [dbquery] Query with error should not move headers
[beeswax] Save results to a table redirects incorrectly

Fix initial save results type as well.
[beeswax] Execute saved design doesn't show name in history
HUE-1872 [oozie] convert to decision node broken
[beeswax] Convert a series of test to the new json and refresh API