Merge pull request #46 from aspidites/master

- fixed typo which caused epoll test to fail unexpectedly
Merge pull request #47 from aspidites/master

- updated unittest to properly detect poller.unregister's (adapted) call
Made a few changes to sendfile functions, fixing sendfile on OS X and (hopefully) BSD. Fixed issue #43.
Fixed a bug in pants.web.application regarding URL captures without specified converters.