To Install Last Unstable Version:
pip install -i http://unstable.tg.gy/20130515/index/ tg.devtools

Unstable Releases

Keep in mind that the paster command has been replaced by the gearbox one, for details take a look at the GearBox project on github 20121207
20121220
20130121
20130125
20130217
20130307
20130313
20130515