Updated for CasperJs 1.1 up to Beta3

Bonjour,

I added all the new CasperJs methods which were flagged in the API as being newer than CasperJs version 1 (which seemed to be the version your initial work was based on). That will make this bundle support up to CasperJs 1.1 Beta3.

I love this Sublime Package and saw a chance to help out. This is literally the first time I've contributed to a GitHub project, so let me know if I've followed the correct protocols. Thanks!