Release 0.4.0.
Fix bug where RQ 0.4 could not unpickle jobs from RQ 0.3.x.
Use single quotes for string literals.
Bump version.
Added depends_on to job decorator
Merge pull request #341 from SanyerMyasoedov/master

Added depends_on to job decorator
Bump version to 0.4.2.
Add Python 3.4 to targets.
make job class dynamic for more hackability
Moved @resolve_connection call into @delay wrapper
Added tests and updated requirements with mock lib.
Removed @resolve_connection from job decorator.

-- resolve_connection already presence inside Queue __init__.
Job and Queue classes as variables (compatible with existing naming)
Flip conditional sides of helper definitions (no semantic change).
Explicit string check in Job constructor.
Enable the most modern Python syntax.
Fix PEP8 complaints.
Merge pull request #342 from friedcell/master

make job class dynamic
Move mock to test-only dependencies.
Merge remote-tracking branch 'origin/master' into SanyerMyasoedov-master

Conflicts:
	rq/decorators.py
	tests/__init__.py
	tests/test_decorator.py