updates to wcs docs and fixes to tests
Fixes for autodocs, primarily mocking
adding to test suite for wcs
removed pyfits as not used anymore
removed distance keyword
bug fix
removed distance from docs
deleted redundant function
removed redundant function and cleaned up code, fixed bug
fixed bug and improved code
small typo and fixes to docs, fixes #383
fixes issue #271 and #275
added tests to time.day_of_year, found bug
squashed non-existent bug
fixed bug
added doc files
finished implementation
removed typo
fixed another typo
Merge pull request #457 from ehsteve/master

Updates to WCS documents and code, also tests!