fix origin in IE10-11. Bump version to 4.2.4

Added origin polyfill. Bump version to 4.2.3

devote#75 commonJS support. Bump version to 4.2.2

devote#73 Mismatched anonymous define() module because of devote#57

Rename files, reducing the priority of the browser IE6-7, bump versio…

…n to 4.2.0

devote#70 MSIE detection uses eval which is blocked by browser Conten…

…t Security Policy

add pay method

devote#32 update version in bower.json and package.json

Merge pull request devote#24 from bjoerge/master

Add package.json

Update README.md