Add --gem-disable-dependencies flag to allow for excluding one or more auto dependencies
BuildArch isn't needed for any purpose
Use --target to specify the architecture.
Rename bins with version appended
Merge pull request #676 from robkinyon/rpm_arch

Fixes for RPM and --architecture
Add test coverage for rpm --architecture flags

This covers a code from #676
Merge pull request #598 from someword/master

Add --gem-disable-dependencies flag to allow for excluding one or more dependencies
Call it --gem-disable-dependency (#598)
Merge pull request #677 from vStone/feature/rename-gem-bin

Rename bins with version appended