Added initial CodeMirrow Query Interface.

TODO: Work on capturing input.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app/views/explorer/collections/show.html.erb
Fix typo
Merge pull request #7 from geota/master

Added initial Query Interface to collections view.
Merge pull request #8 from drcapulet/master

Consistent Page Headers 
Added the ability to capture user input from the Query Interface on
'enter' keydown.
TODO: Make it look like a prompt. Look into CodeMirror gutters.
Merge remote-tracking branch 'upstream/master'
Merge pull request #9 from geota/master

Added the ability to capture user input from Query Interface on 'enter' keydown.
minor: fixing bundler
Remove 1.8x Rubies since we aren't targeting them