I tried pushing some evolutions to Heroku:
2012-08-30T10:58:00+00:00 heroku[slugc]: Slug compilation finished 2012-08-30T10:58:02+00:00 heroku[web.1]: Starti
I think you have some problem with the definition in VALUES with the data time field. I posted my working evolutions config setup for play 2.4, Slick 3.0.3 & postgres. I got automatically generated the *.sql files placed in the evolution folder.
Regenerate evolution scripts in play 2
Cheers