Skip a handful of doctests that tended to fail pseudo-nondeterministically due to involving dict keyword iteration order
Merge pull request #2827 from embray/astropy-helpers-update

Update ah_bootstrap.py from soon-to-be astropy-helpers v0.4.1
Merge pull request #2828 from embray/misc/python3

Enable importing Astropy from a source checkout on Python 3
Fixed a failing test of documentation build

In nitpicking mode, sphinx was producing these warnings "WARNING:
py:obj reference target not found:...". I am not sure what is the
origin of these warnings for the `all_world2pix` function but it may be
due to its interesting way of creating the docstring and "injecting" it
into the function. In any case, for each problematic object I have
changed single backquotes to double backquotes.
Don't skip the doctest.
PEP8 and formatting fixes
Merge pull request #2809 from mdboom/docs/other-parameters-section-formatting

"Other parameters" sections have weird formatting
Update astropy_helpers to the commit that will be tagged v0.4.1
Merge pull request #2834 from embray/astropy-helpers-update

Update astropy_helpers to the commit that will be tagged v0.4.1
Merge pull request #2826 from taldcroft/ascii-missing-docs

Rework / simplify doc section on Bad or Missing Values
Fix Travis failures.
Merge pull request #2838 from mdboom/mcara-fixes

Fix #2816: Make doctest work
Cleaning up empty sections in v0.4.1 changes.  Should have been done before release but no harm.
Marking 0.4.1 released and setting up template for 0.4.2 changelog section
Merge pull request #2829 from embray/testing/skip-unreliable-doctests

Skip a handful of doctests that
Automatically recognize h5py Dataset objects in Table.read
Small typo/grammar fix in docstring
Import entire tree of inheritance in astropy.io.ascii

In the current setup, not every class in io.ascii is documented, but only
those that are part of the top-level namespace io.ascii as defined in
io.ascii.__init__

For every class in there, sphinx sets links to the parent class. Thus, for
every class in this list, all parent need to be in this list, too.
This commit adds BasicData and BasicHeader, which are parents of
FixedWidthHeader and FixedWidthData, respectively.

Implement changes from PR discussion, mostly in ascii table reader docs
Merge pull request #2831 from astrofrog/fix-hdf5-dataset-auto

Automatically recognize h5py Dataset objects in Table.read
Make sure .pyc and .o files are excluded globally.