Implemented : Redirect to landing page if url not found.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Fixed Standard tooltip box moves when scrolling
  Edit PDF file to JPG, JPG file doesn't play - Issue resolved
  fixed compilation error
  Standards drop menu performance improvements implemented.
Merge pull request #880 from anilgooru/dev-branch

Implemented : Redirect to landing page if url not found.