Update nokogiri link

RIP RubyForge
Merge pull request #404 from Dhaulagiri/master

Update nokogiri link
Merge pull request #401 from eligoenergy/issue_346

Issue #346: method to clean up the current list of pressed buttons.
Bump version to final beta
Merge pull request #2 from sparklemotion/master

Latest
Merge branch 'master' into eligo_master