add exercises via competition form
adds exercises to competition from the form
fixes status filter
adds resource header componenet
more css tweaks
adds calendar
refactoring activities
add activity add button
revert async user on activities
upgrade ember data version and fix activities now showing up
fix log activity
attempting to deal with async issues
fix activity test
some test fixes
update tests
fix spec tests
fix competitions cucumbers
fix challenge attempts cucumbers
update exercise tests
update user tests