Release Name: 1.2.2

Notes:
Bugfix release


Changes:
  - Fix Dependency.satisfy? and add tests/test_dependency.rb (r25)
  - Fix segfault when RPM::File.new is called with link_to = nil (r24)
  - Fix segfault in RPM::Version.inspect (r21)
  - Patch from Pascal Terjan (Mandriva) for rpm 4.4.6 (r28)
  - Better Rakefile, builds a gem; though install.rb is still needed