Adding environment based configuration

[marbetschar]

Doing API configurations based on the environment it is running on.
See https://github.com/seancorfield/fw1/issues/102 for inspiration.

[atuttle]

https://github.com/atuttle/Taffy/wiki/Environment-Specific-Configuration

https://github.com/atuttle/Taffy/wiki/List-of-all-variables.framework-settings