study player has been modified partially.
Navigation bar has been implemented.
Merge pull request #956 from chandrasekharv/dev-branch

Feature contributors thumbnails loading issue fixed
Setting access_token on refreshing token.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Feature contributors thumbnails loading issue fixed
Merge pull request #957 from anilgooru/dev-branch

Setting access_token on refreshing token.
""Edit Direction" text issue resolved"
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #958 from mitraj/dev-branch

""Edit Direction" text issue resolved"
Resolved issue with loading reviews on scroll down.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #959 from VinRudramurthy/dev-branch

Resolved issue with loading reviews on scroll down.
setting access token after getting from refresh api.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Resolved issue with loading reviews on scroll down.
  ""Edit Direction" text issue resolved"
Merge pull request #960 from anilgooru/dev-branch

setting access token after getting from refresh api.
Player modification is in progress.
Removed sysout and console logs.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
Merge pull request #961 from anilgooru/dev-branch

Removed sysout and console logs.
Test