Add gevent supported timeline
add cleanup
Add gevent requirement, and allow gracegful fail if gevent is not installed
gevent for python2.x
Attemp to ignore pypy
Factor 0 requires an implicit gevent switch
rename param
Merge pull request #2 from omergertel/gevent

Add gevent supported timeline
bump version
Move to py.test
Sequences: immediately trigger the beginning of the sequence generator upon registration
bump version