Integrate stub_wisper_publisher rspec helper [Fix #1]
Merge pull request #2 from reverbdev/stub-wisper-publisher

Integrate stub_wisper_publisher rspec helper [Fix #1]
assert the entire chain is called
Make examples more concrete.
first thoughts on adding global listeners, these are listeners that do not need adding to each publisher, but get every broadcast.
tidy up spec
add example of global listeners to README
fix merge conflict