Prep for 3.0.2 release
compact is unneeded here
Merge 3.0.1 CHANGELOGs and prepare 3.0.2.pre
Bump version to 3.0.1.pre
Prep for RC2
Prep for RC
Ops, this should be beta4.
Update versions (otherwise you install a gem from source as beta3 but…
… internally it's beta2) and update CHANGELOG.
Bump this guy too
Add `rake update_versions` task at root for quickly updating all comp…