solutions manage
solution links
WIP solutions ideation
Merge master branch

Conflicts:
	app/lib/collections.coffee
create modeling work item dialog
only handle github authenticated users
create modeling work item modal ui
use work_groups, work_items instead of categories, posts
filter by solution
modeling ui
add solution select control on GNB.
add solutions page
gnb active class
fix current solutions bugs
minor ui fix
Handlebars -> UI
Spacebars, not UI
gnb solution select fix
modeling item status - todo,doing,done
remove unused collections
Merge pull request #32 from eskim/solutions

working on ideation, modeling ui depending on solutions