Separated keyword sets for different subplot types of scatter_matrix.
Updated RELEASE.rst to note modifications closing #3267
TST: unit test for #3503
TST: Fix assert_almost_equal error message

Most tests are of form assert_almost_equal(result, expected).  Verbose
error message was treating its first argument as expected, this is now
fixed.
Merge pull request #3694 from pydata/PR-test-3503

Test to verify/fix behavior in #3503
REF: promote parser.pyx into top level
CLN: remove sandbox cruft
BUG: fix _parser->parser import (sorry)
BUG: fix tokenizer bug with \r line terminator and quoted fields. closes #3453
Merge PR #3673
BUG: fix failing scatter matrix test
BUG: (GH3740) Groupby transform with item-by-item not upcasting correctly
BUG: ensure float into function of series transform when item-by-item

     downcast result if needed
Merge pull request #3743 from jreback/groupby_int

BUG: (GH3740) Groupby transform with item-by-item not upcasting correctly
Merge pull request #3737 from jtratner/fix-assert-almost-equal

TST: Fix assert_almost_equal error message
BUG: (GH3748) Incorrectly read a HDFStore multi-index Frame witha column specification

API: raise a ``TypeError`` on passing ``where`` or ``columns`` to select with a Storer
     e.g. these are invalid parameters at this time
Merge pull request #3749 from jreback/hdf_mi

BUG: (GH3748) Incorrectly read a HDFStore multi-index Frame witha column specification
DOC: warning that PyTables not yet supported on python >= 3.0
BUG/TST: tests should be skipped if bs4 and the corresponding library is not installed
TST: fix html5lib tests and update data to more recent version