Reset the RELEASE_TAG to None (unreleased) now that the 0.4-20090224 release candidate branch has been created.
Reset the RELEASE_TAG to None (unreleased) now that the 0.4-20090224 release
candidate branch has been created.

Patch by: Pawel Solyga

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging