Merge pull request #1 from abakus/master

Porting to Ruby 1.9 from abakus
Merge pull request #2 from abakus/master

Making a gem out of rjoystick by abakus
use rb_thread_blocking_region to allow thread to read events
Merge remote-tracking branch 'sanggye/master'
update README, and back to ruby-1.9
Merge pull request #3 from djellemah/master

rb_thread_blocking_region to read events without blocking