Added simple wrappers for escape/unescape for transport-safe compression

This isn't nearly as compressed as lz-string natively but still yields considerable savings over uncompressed and uses only basic characters so can be sent through various mediums with issues.

A simple test of a JSON object:

![screen shot 2013-05-25 at 6 44 35 pm](https://f.cloud.github.com/assets/882485/564389/792b8a5a-c55e-11e2-8abc-e76e90c38312.png)