Update Badge Alignment#4
Merge pull request #281 from ruijunhuang2010/master

Merge pull request #34 from ChrisBoesch/master
Merge pull request #282 from ruijunhuang2010/master

edit challenge #1
Merge pull request #283 from ruijunhuang2010/master

edit challenge #2
Merge pull request #284 from ruijunhuang2010/master

resolve population of normal path drop down list
Merge pull request #285 from ruijunhuang2010/master

minor change
Merge pull request #94 from ChrisBoesch/master

Updates
Merge pull request #286 from ruijunhuang2010/master

validate duplicate video
Merge pull request #287 from ShaikDawood/master

Update Badges Alignment#4
Merge pull request #288 from ruijunhuang2010/master

pop up success notification after user create a challenge
Merge pull request #35 from ChrisBoesch/master

update