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
Merge pull request #10 from drcapulet/master

Cleanup Travis Rubies
Moved away form CodeMirror for the QueryInterface, using a stylized
form. Makes executing the user's query safer.