Kinesis

Adds support for Kinesis contributed to the [crowdmob/goamz](https://github.com/crowdmob/goamz) fork by @pims, @richarddbarnett & @sweeney:

 * crowdmob/goamz#177
 * crowdmob/goamz#239
 * crowdmob/goamz#279

Also added additional region endpoints. /cc @boyand