Added .check() and .uncheck() methods to manipulate the check state of a checkbox.
Added documentation for the .check() and .uncheck() methods.
Rewrote PB.Class
Merge pull request #42 from Saartje87/checkbox

Checkbox methods
Events triggered on an input element sometimes did not trigger
Fixed bug where parseQueryString failed to parse special characters
Merge branch 'master' of https://github.com/Saartje87/pbjs-0.6 into dev

Conflicts:
	dist/pbjs.js
	dist/pbjs.min.js