Minor changes to support masking
Merge pull request #19 from spacetelescope/masking

Minor changes to support masking
Add support for string data types
Merge pull request #18 from spacetelescope/string-types

Add support for string data types
Don't include extended precision floating point numbers for now.
Merge pull request #21 from mdboom/floating-point-simpler

Don't include extended precision floating point numbers for now.
Fix LaTeX rendering.
Fix deep levels of nesting.
For LaTeX fixes
Rename FINF to ASDF
Merge pull request #23 from mdboom/rename-to-asdf

Rename FINF to ASDF
Add PIP requirements file.
Add dummy setup.py for readthedocs
Lots of various improvements
Merge pull request #24 from mdboom/lots-of-improvements

Lots of various improvements
Add pyyaml as dependency