Logging, new communities, Misc updates

Merge pull request #59 from topcoder-platform/develop

Logging, new communities, Misc updates

fix for compete button and retUrl

Merge pull request #55 from topcoder-platform/develop

fix for compete button and retUrl

Misc Improvements

v0.5.10

Merge branch 'develop'

Revert "Improvements to listings"

Merge pull request #51 from topcoder-platform/revert-50-develop

Revert "Improvements to listings"

Improvements to listings

Merge pull request #50 from topcoder-platform/develop

Improvements to listings

Challenge link fixes - 2

Merge pull request #46 from topcoder-platform/develop

Challenge link fixes

Challenge links fix

Merge pull request #45 from topcoder-platform/develop

Rapid fixes for ##40,41

Rapid fixes for ##40,41

Merge pull request #45 from topcoder-platform/develop

Rapid fixes for ##40,41

Merge latest listings v3 api code and group filtering

Merge pull request #44 from topcoder-platform/develop

Merge latest listings v3 api code and group filtering

Initial release of community app for hybrid

v0.5.4

removing leaderboard feed for wipro site