bug fixes in versioning module
Merge pull request #25 from krishna31/master

bug fixes in versioning module
bug fixes in comment tab
Merge pull request #26 from krishna31/master

bug fixes in comment tab
changes for org-mode, export of literal string containing “\_”
Merge pull request #27 from anujag/master

changes for orgmode export for underscore(_) words
graph change
Merge pull request #28 from anujag/master

graph change
Merge pull request #29 from Dhiru/master

updation of video module
 Error resolved