add usercount to call to action
more active, succinct CtoA
add admin stats page with basic d3 plots
Merge branch 'stats' of github.com:Blahah/solvers into stats
fix typo
add view count to project

very simple at the moment - not checking for uniques, just ensuring we
only increment once per user per session. This way we count visits in
different sessions, e.g. coming back to comment (arguably a valid
interaction worth counting).
Merge branch 'project-editor' of github.com:Blahah/solvers into project-editor
switch to atmosphere package for pagedown-boostrap
Merge branch 'project-editor' of github.com:Blahah/solvers into Blahah-project-editor

Conflicts:
	app/client/templates/home/callToAction.html