add mock objects
update deps

The version of underscore we were on is missing _.object
mock -> mocks
README: clearer wording
README: clearer wording
event emitter -> dev dep
registerTask -> intercept
mocks: workers: keep track of all method calls
mocks readme: worker.received
mock workers: make received[method] always exist
mocks README: better mockworker example
mocks README: demonstrate received
compile mocks
Merge pull request #6 from Clever/mocks

add mock objects