Fix version requirement so it works for prerelease and 1.0.0+

MSP-11103

The add_development_dependency step wasn't specialized to handle
prerelease, so cucumber failed once I was using a pre-release version
for a version newer than any released version: the bundle install step
was previously working by installing the published gem.  While fixing
the handling for prerelease, I also fixed the requirement on 1.0.0+ so
that the MINOR number can wiggle instead of the PATCH.