empty td when no tag
Added new templates and checked for the unit standardization
added new template files
Fix template loader
Merge remote-tracking branch 'origin/current-sprint' into rounded-tabs
Issue-533-tags-multiple-fixed
Merge branch 'current-sprint' of github.com:prisms-center/materialscommons.org into current-sprint
changes to the tagging
changes to the tagging system
ISSUE#558. Add colored tabs and fix up the other colors on the site.
Merge remote-tracking branch 'origin/current-sprint' into rounded-tabs

Conflicts:
	website/app/application/directives/projecttree-directive.js