Changed some of the wording in units docs to clarify what "unit formats" is about
added more subsections and generified base formats.rst title
Changed format.rst section title to @mdboom's suggestion

[ci skip]
Changed section title form "Units" to "Units and Quantities"

[ci skip]
Add upgrade instructions for anaconda users

Addresses issue #1805 which describes the mess created when updating astropy in anaconda using pip.
Changed title of first subsection
Add anaconda/pip/conda installation note to Known Issues

Closes #1805
Merge pull request #1707 from eteq/unit-formats-doc-clarification

Changed some of the wording in units docs to clarify what "unit formats" is about
Merge pull request #1806 from mwcraig/patch-3

Add upgrade instructions for anaconda users
Fix for #1804
Fix for #1804
Merge pull request #1810 from adonath/Fix_for_#1804

Fix for #1804
Released 0.3--updated the changelog to reflect this and bumped dev version of master to 0.4.  (the release script really ought to do this part)
Added placeholder sections for 0.3.1 changelog
Added placeholder sections for 0.4.0 changelog
Merge pull request #1780 from astrofrog/changelog-placeholder-0.4.0

Create placeholder sections in changelog