Add --no-auto-depends flag
Add minitest to spec, fix rspec test breakage
rpm, epoch should not be set by default
Merge pull request #387 from r4um/fix_339

Closes #339 Add minitest to spec, fix rspec test breakage.
Merge pull request #386 from r4um/fix_374

Closes #374 Add --no-auto-depends flag.
Merge pull request #388 from r4um/fix_381

Closes #381 rpm, epoch should not be set by default.
- try to downgrade rubygems since rubygems 2.0.0 doesn't work