Merge branch 'hotfix/2.3.4'
Merge branch 'release/2.3.5'
Merge branch 'release/2.3.6'
Add explain option to documents API in ruby
Add tests for explain feature. Php will still fail
Add explain feature to php api
Add explain checkbox to advanced search
Fix explain checkbox alignment to match search buttons
Add built ruby and php server files
Switch php comment style to recommended style
Change explain checkbox to be a button
Add built php and rb files
Upgrade explain to a legit app section and API endpoint.
Merge branch 'feature/explain' into develop

Conflicts:
	genghis.php
	genghis.rb
Add “explain” to CHANGELOG.

@craigerm rocks!
DRYER query decoding in PHP API.