Add challenge listing code
Merge branch 'dev' of github.com:topcoderinc/tc-site into indy-angular-listing-2
A few formatting changes
Change path to filters
Fix issues with tags and platform filter and displaying
Add tags to grid view
Merge branch 'dev' of github.com:topcoderinc/tc-site into indy-angular-listing-2
Remove unused dependcys
Add loading start/stop
Make loading smoother
Fix data challnges
Fix issue with loading data challenges
Add routing
Remove extra directive
Add tooltips
Add url updating and linking for listing paramas
Fix displaying of type icon for grid design
fix persistance of grid/table view
Merge branch 'dev' into indy-angular-listing-2
Fix rewrite rules