Finished release 0.5.
Bumping version to 0.6.0dev
Update alias in setup.cfg to upload when releasing.
Minor clean-up to Makefile.
Make man-pages together with html-docs.
Update rst-Markup.
Pivotal tracker integration.

Added busyflow.pivotal (fixed a XMLBuilder-related bug).
Added reviewboard module.
Reused code from original workflow plugin.
Support for finishing chores.
Support for updating review requests (alpha).
Updating existing review when possible.
Moved busyflow inside gitflow.
Started with release modifications.
Updated docs.
Merge branch 'pivotal-support' of github.com:salsita/gitflow into pivotal-support
Minor refactoring.
Improved release summary.
Fixes.
Updated docs.
Updated doc (minor changes).
Nicer feature start output.