Removed browser-dependent arity test.
Fixed another leaking global.
Merge pull request #77 from joshuacc/remove-arity-test

Removed browser-dependent arity test.
Merge pull request #78 from joshuacc/leaking-global

Fixed another leaking global.
Merge pull request #76 from joshuacc/jshint

Adding linting via JSHint
Allow 'new Constructor' without parens.
Added missing semicolons flagged by JSHint.