rubyspec

This release just requires MSpec 1.5.9 which fixes a bug in one of the implementation guards.

The implementation guards have been made more consistent in MSpec. The usage of the guards in the RubySpecs has been updated. See http://rubyspec.org/wiki/rubyspec/Guards for documentation on the guards.

Tags have been added for the specs that fail on Ruby 1.9 to facilitate updating the specs.

The 1.8 and 1.9 specs have been merged. There are no longer separate directories in the rubyspec tree for the different versions. See http://rubyspec.org/wiki/rubyspec/Organization for details about writing version-specific specs.

The RubySpecs generally follow a freely-flowing update policy. However, there are times when it will be helpful to refer to a concrete version.

The specs have been updated with all shared blocks changed to be compatible with RSpec shared blocks. This is a significant change and requires a particular version of MSpec as well. An MSpec version check has been added to spec_helper.rb and version.rb has been created with the initial version set to 0.5.0.