Added md5s for ruby-2.0.0-p247.
Updated the version for ruby 2.0.
Merge branch 'version_bump' of git://github.com/havenwood/ruby-install into havenwood-version_bump

Conflicts:
	share/ruby-install/ruby/versions.txt
Merge pull request #49 from havenwood/version_bump

Add md5s for ruby-2.0.0-p247 and update ruby 2.0 default.