Add ruby 2.0.0 to travis
Merge pull request #1 from jwg2s/develop

Add ruby 2.0.0 to travis
Formatting all files
Add necessary vendor files for png rendering
Temporary spec commit
Merge pull request #2 from jwg2s/develop

Formatting all files
Adds ability for phantomjs to render images on the server
Remove debugger
Cleanup
Remove unneeded binmode
Handle pwd better
Better path management
Improve possible options
Don't need default constr value
Merge pull request #3 from jwg2s/feature/render-pngs

Render PNGs on the Server with PhantomJS
Change full_options to pre-process LazyHighCharts options

Now recognizes when JS code is being included as a JSON value
and is correctly pre-processed (as in the high_charts HTML helper)
Change file loading order
Remove ruby-head from travis
Merge pull request #4 from singjsong/feature/formatter-bugfix

Change full_options to pre-process LazyHighCharts options
Return chart Tempfile, option for other image formats