Semi useful repr for Collection
Make parser context repr more obvious...we have two Contexts
More repr/str updates
Add another FIXME, meh
I didn't TDD! Whoops.
Be more lenient about what Executor needs to be created
Failing test proving #116
WIP
Add some debugging to Executor.execute
Merge branch 'master' into pre-tasks-and-configuration-116
Add some debugging to Executor.execute
Make Task.name more useful, fixes #27
Fix up Task repr some more, whoops
First stab at normalizing task vs name junk in execute()
Modify tests to handle new expected API
Update signature + docstring
Overhaul Collection.configuration(), fixes #116
Merge branch 'pre-tasks-and-configuration-116'

Conflicts:
	invoke/executor.py
Forgot a changelog re #116