Added more error checking for GET request args
Added todo notes
Uncommented branch data acquisition
Replaced mongostrap CSS with bootstrap CSS

Also mongo-ified bootstrap theme's navbar
Fixed bug in directory level test querying

Fixed bug where aggregation for directory level test
querying was overwritten by generic querying.
Functionized buildID and git hash results retrieval
Reformed error template args, program catches absense of coverage data

If there exists no coverage data in the database, the report page
expresses this instead of crashing.
Merge pull request #50 from mvankeulen94/cleanup

Cleanup