Calypso release process

Upstream:

1) Run the tests (./setup.py nosetests)

2) Set version in calypso/__init__.py. Commit to master

3) Tag master branch with version number

4) Push master branch and tag to alioth repository.

5) Send mail to the calypso@keithp.com mailing list

 To generate the history, use e.g.:

 $ git log --format=tformat:%s\ \(%an\) 1.4.. > ChangeLog