Fix MIRI package_data

Merge pull request #91 from Johannes-Sahlmann/package-data

fix MIRI package data

Implement option for rigorous transformations

This release introduces code that enables the use of rigorous 3D rotation transformations (e.g. idl_to_tel) in addition to the default planar approximations.

Siaf instance initialization is case-insensitive

This release introduces changes that make the Siaf instance initialization tolerant towards capitalization of the instrument name. Siaf objects can now be obtained with pysiaf.Siaf('nircam'), pysiaf.Siaf('NIRCam'), pysiaf.Siaf('NIRCAM'), ...

MIRI SIAF generation

This release introduces the code and data necessary to generate the MIRI SIAF.

Documentation and tests for rotations module,

This release introduces tests for the rotations module and improved documentation.

It also includes an ipython notebook with NIRCam plotting examples and enhanced options for aperture plotting.