Merge pull request #14 from eko/master

Update authorName field to be nullable when using a SignedCommentInterfa...
Updated documentation
Merge pull request #13 from Bladrak/updatedDoc

Updated documentation
Fixing the default button design
Merge pull request #15 from grosenbaum/fix-design

Fixing the default button design
[documentation] improve Sphinx support
SONATA-464 - Fix for refreshing all comments + comment count when adding a new comment