1.0.3dev: Refactored `parse_workflow_config` and eliminated implicit behavior. Refs #11850.

If the `_reset` action is defined in the `[ticket-workflow]` section of trac.ini, then only the attributes defined in that section will be used.


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.0-stable@13444 af82e41b-90c4-0310-8c96-b1721e28e2e2