client now ignores unsupported upgrades
Release 0.4.1
Merge pull request #90 from ruxkor/to_learnboost_20130117

client now ignores unsupported upgrades
fix "TypeError: Object #<Object> has no method 'global'"
Merge pull request #91 from ramitos/patch-1

fix "TypeError: Object #<Object> has no method 'global'"
parser.js: removed the file
package.json: added the engine.io-parser dependency
everything else: switched to engine.io-parser