Fix handling of string types for perforce changeset descriptions.

Review Request #5953 — Created June 7, 2014 and submitted — Latest diff uploaded

Information

Review Board
release-2.0.x
19c4e7b...

Reviewers

We get data out of p4python as strs, but we weren't treating them as such.
This change adds some logic to decode changesets before processing them, which
should improve the situation.

Ran unit tests.