PyHAT Updates (#87)

* Small updates to get the scripts working.

* Fixed pradius calculations, and made some small changes.

* Removed coord transforms and made body_fix func more generic.

* Updated reproj doc string.

* General refactor to socet scripts and clean up. Simplfied input for both scripts.

* Updated conf to use conda prefix

* Fixed up __getattr__ func

* Corrected attribute error text

* Uploaded notebooks for remote access

* Updated notebooks with complete footprint function

* More or less final notebook

* Forgot to tab this in under the first except block

* Updated version.

* Removed unnecessary notebooks

* Removed previously removed module

* Removed old import

* Fixes issue indexing on the hcube

* Updated hcube

* Updated io_m3 and io_crism pyhat dependency

* hcube and indexing update to handle clipping and other operations