Allow the use of non-local ReadMe files in the CDS reader
Documentation of the CDS reader class updated
General documentation updated with an example of the load of CDS tables using URLs
Prevent VOTable validator from crashing when system sends SIGKILL during xmllint.
sip_pix2foc should subtract crpix and the end, and sip_foc2pix should do
the inverse.
io.ascii.ui: typo in Error mesage?

I think this is just a typo. If not, then I don't understand what it means.
__repr__ method in Table now also returns the units

updated doctests (for __repr__ table)

updated doctests (for __repr__ table), corrected

modifying table_repr_method

show units only when atleast one column is not None. + doctests updated.

show units only when atleast one column not None. + doctests updated.

removed quotes from 'None'.

some code standardization

added test for repr method, updated changes.rst

added doctest for repr method, updated chages.rst
Added support for inputting units
Added test for units and corresponding data file
Removed unnecessary statement
Added support for inputting column description as well
Included test file in setup_package
Changed SExtractor test to include a description check
Slight improvements to model string formatting

This deduplicates a lot of `__repr__` and `__str__` code for Model
and its subclasses, so there is more consistency between different
Model classes in what their `__repr__` and `__str__` output.
Also made some slight improvements to the previous output formats.
I still don't claim this to be perfect, but it's a step in a better
direction.  In particular I think displaying the different parameter
sets as a table is nice.

These changes are a prerequisite to another, potentially more
interesting change.
fix a bug in format_input where output scalars were not returned correctly. Convert all models in projections.py to use format_input.
add a test
Made SExtractor regex verbose, enhanced test and test file
Added changelog entry
Merge branch '3.2-stable' into astropy

Incorporates up through aa78ac3ad54441cf247e8f32ef32dd685a05c6fc

Conflicts:
	.authors
	docs/source/conf.py
	lib/pyfits/_release.py
	setup.cfg

Conflicts:

	.authors
	astropy/io/fits/card.py
	astropy/io/fits/fitsrec.py
	astropy/io/fits/hdu/table.py
	astropy/io/fits/header.py
	astropy/io/fits/tests/test_checksum.py
	astropy/io/fits/tests/test_core.py
	astropy/io/fits/tests/test_table.py
Added a changelog entry--not copying all the changes just mentioning that they were ported.