Update MANIFEST.in

Merge pull request python-greenlet#134 from python-greenlet/release-0…

….4.14

Prepare to release greenlet 0.4.14

Prepare for 0.4.13 release

Stop using trashcan api

Prepare for 0.4.11 release

Prepare for 0.4.10 release

Bump version to 0.4.9

Update version to 0.4.7

Update version to 0.4.6

Prepare to release 0.4.5