Merge pull request #1 from danielafeitosa/master

Added option to order by index
trying better visualization to both small and huge matrices
Merge branch 'master' of github.com:joenio/visualizo
adding background and opacity do sidebar
Added jQuery tipsy for tooltips
re-organizing and removing unused code

- application.css renamed to default.css
- less transparency for tooltip box
- include bootstrap and font-awesome css to svg.html.ep layout
- scrollTo and colorbox arent needed
- add d3.v3.min.js to public/ folder
explore repositories, for now only list all repositories
set the tooltip (tipsy) gravity dynamically
trying to improve tooltip design
group order is the same of directory, then remove it
Added button to go back to enqueue page