BubbleChart: Added course catalog
PathBar: Changed wording.
CourseInfo: Changed wording
Update TODO
Revised bubble chart and alumni bar
CourseInfo: Revised term data
CourseInfo: Added popularity
AlumniBar: make frame hidable.
Grunt: revised for dist
Merge pull request #7 from peacedove/master

update sankey data loaded and graph generation method
PathVizService: Removed dummy code.
PathVizService: Refactor orderize.
PathVizService: Cleaned up filter function.
Alumni data: fixed job_category and job_title
CourseInfo: Added legend
Fixed alumni category/title data mapping
Course: Added dynamic layout
AlumniBar: new toggle button style
PathBar: show on default
Updated TODO