add support for Travis CI
improve test coverage
update from remote master
allow users to delete comments. This is based on the development.ini 'content.update.allowed.duration' parameter. Value may be -1 0 or a duration in seconds. -1 means always deletable, 0 (default) means not deletable, and a positive value will allow the author to delete his comment for the given duration in seconds
remove unit-test case in order to make travis ci build process ok
Merge pull request #6 from lebouquetin/master

Allow to delete comments in a thread