implementation of UCM clearcase activity changeset using parse_revision_spec:

rbt post activity:<activity_name>[@pvob]
initial solution to prevent activities reporting files from multiple vobs. Only the current working vob will count.
co-author:

Thor Smith
see old review request 5168 https://reviews.reviewboard.org/r/5168

can post a review request from RHEL6 (python 2.6) using

rbt post activity:<activity_name>