Misc enhancements

Merge pull request #78 from topcoder-platform/develop

Adds confirm modal to Join Community button

Adds confirm modal to Join Community button

Merge pull request #78 from topcoder-platform/develop

Adds confirm modal to Join Community button

First version of Join Community

Merge pull request #77 from topcoder-platform/develop

First version of Join Community

Stats integration on community homepages

Merge pull request #76 from topcoder-platform/develop

Stats integration

content update for tc-prod-dev

Merge pull request #75 from topcoder-platform/develop

content update for tc-prod-dev

updated tc hero

Merge pull request #68 from topcoder-platform/develop

updated tc hero

Topcoder prod dev content 2

Merge pull request #65 from topcoder-platform/develop

Topcoder prod dev content

Fix of challenge listing

Merge pull request #66 from topcoder-platform/develop

Fix of challenge listing

Topcoder prod dev content

Merge pull request #64 from topcoder-platform/develop

Group filter and blog feed

Group filter and blog feed

Merge pull request #64 from topcoder-platform/develop

Group filter and blog feed