move router to submodule
add __init__.py
correct import in emit/__init__.py
rename message to messages
remove convenience import
fix messages import
move router tests
make core tests pass
fix multilang tests
fix message tests
implement better skipIf
remove relative import in router core
use setup.py nosetests
re-add (testing)
add find_packages
add distribute_setup.py
simplify setup.py
bump version to 0.4.0pre
change dev tag to pre
add extras