Moving Cohort dropdown and 'Set as default' button from dashboard to cohort
Fixing merging conflicts
Clarified request update/edit buttons, created 'update' button for requests
Added ability to view all cohorts - using dropdown box allows teacher to view different cohorts
Moved Default
Cohort dropdown button now is in both "dashboard" and "cohort" areas
Edited edit/update button and began editing request specs
Fixed merge problems
Merge branch 'slateBranch2'
Added JS features to switch cohorts on Dashboard