Merge pull request #19 from ChrisBoesch/master

update
Merge pull request #427 from ruijunhuang2010/master

Merge pull request #19 from ChrisBoesch/master
Merge pull request #20 from ChrisBoesch/master

update
Path name and Badges earned are not match in profile page
Merge pull request #428 from ruijunhuang2010/master

update
redirect registered open challenges to registration page
Merge pull request #429 from ruijunhuang2010/master

redirect registered open challenges to registration page
modification in registration page to resume the game
minor change
Merge pull request #430 from ruijunhuang2010/master

update
resume from accepted challenges
Merge pull request #431 from ruijunhuang2010/master

resume from accepted challenges
resume challenge game from profile page
Merge pull request #432 from ruijunhuang2010/master

resume challenge game from profile page
Merge pull request #133 from ChrisBoesch/master

Updates