add --guess-branch support (clearcase implementation only)

Review Request #6515 — Created Oct. 28, 2014 and discarded — Latest diff uploaded

Information

RBTools
release-0.6.x

Reviewers

Implementation provided when revisions are UCM ClearCase activity and base ClearCase branch (brtype:)

cf this thread
https://groups.google.com/forum/#!topic/reviewboard-dev/gGWV2DQhgZ4

can post successfully this request with --guess-branch=no

can post successfully review request --guess-branch=yes from clearcase scm with revisions brtype:branch against reviewboard server 1.7.6 (current branch filled)

can post successfully review request --guess-branch=yes from ucm clearcase activity with revisions activity:activity against reviewboard server 1.7.6 (deliver stream filled)