Integer+fractional day implementation, using double-doubles.
Tests adapted as well.
explicitly stated that we follow the PSF code of conduct
Basic subtitution of SOFA by ERFA
Attempt to fix #1179.  Test failing on Debian/MIPS because of an errant floating point warning
Fix #1130: Scale and format attributes were not listed in dir()
Remove further references to SOFA, now in docs
Updated changelog
Updated the last iau prefixed function
Add import statement for Table.
Remove sys.stdout

`sys.stdout` is the default. There is no need to explicitly put this.
Use RandomState in iterative tests
remove a commented line
Adds rudimentary __str__ and __repr__ representations for NDData objects.
Low-hanging fruit optimization in the initializer of Angle
PEP8 fixes for time
Improve precision code docs and use more meaningful var names
Add more tests of precision code
Move precision tests to test_precision, refactor into separate tests
Add discussion of floating point accuracy to Time documentation
Merge pull request #1 from taldcroft/time-int-frac

Add new tests, clarify code, and do PEP8 fixes