add mruby-thread.
Merge pull request #15 from mattn/mruby-thread

add mruby-thread.
Create mruby-allegro.gem
Merge pull request #16 from cremno/mruby-allegro

add mruby-allegro
thanks @cremno
Add mruby-audite GEM
Add mruby-require GEM
Add mruby-dll GEM
Add mruby-updategems GEM
Add mruby-mecab GEM
Add mruby-cfunc GEM
Add mruby-cocoa GEM
Add mruby-aws-s3 GEM
Add mruby-cgroup GEM
Add mruby-syslog GEM
add mruby-arduino
Merge pull request #17 from kyab/master

Add mruby-arduino
Add mruby-hs-regexp.
Merge pull request #18 from masamitsu-murase/add_mruby_hs_regexp

Add mruby-hs-regexp.
Add mruby-discount
Merge pull request #19 from matsumoto-r/add_mruby_discount

Add mruby-discount