Imported mruby versions from https://github.com/postmodern/ruby-install/blob/bac46d9390e52d012c4f21b87284ec3d9b3ea79f/share/ruby-install/mruby/versions.txt
Imported md5 checksums for mruby from https://github.com/postmodern/ruby-install/blob/bac46d9390e52d012c4f21b87284ec3d9b3ea79f/share/ruby-install/mruby/md5.txt
Added missing checksums for mruby-1.0.0.tar.gz.
Added checksums for mruby-1.0.0.zip.