Update sir-trevor.
Add Editor module.
Implement Code block type.
Remove rails generetated js files.
Move sir-trevor require statement to application.js
Add highlightjs
Add highlighter module.
Add marked.
Fix bug in Code block where newlines are not retained.
Remove Image block for now. Will implement if we have time.
Add Text, Heading, Code, and List renderers.
Remove padding from pre element.
Merge branch 'sir-trevor'
Merge @EvanSchaffner/master