Freeze version number on 0.3 tag.
Freeze version number on 0.3 tag.

--HG--
branch : 0.3.x
extra : close : 1
extra : convert_revision : svn%3A7a298fb0-333a-0410-83e7-658617cd9cf3/tags/0.3.0%4064

djc/couchdb-python,djc/couchdb-python,infinit/couchdb-python,Roger/couchdb-python