Redid some of the http requests to handle errors and added alerts. fixes #625.
Added heatmap row selections alignment correction. fixes #627.
Added notific8 css loading.
Merge remote-tracking branch 'origin/heatmap-selections-add' into heatmap-selections-add

Conflicts:
	web/src/main/javascript/edu/dfci/cccb/mev/web/javascript/controllers.js