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.
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
DOC: add release notes and whatsnew
Merge pull request #3741 from cpcloud/read-html

TST/BUG: fix bs4 tests that were getting erroneously run when lxml is installed but not bs4
DOC: update io.rst for PyTables 3.0.0 compat
DOC: fix typo in core.series.__new__ docstring
DOC: document the various pitfalls of reading html

DOC: change formatting

DOC: more formatting

DOC: add bold substitutions

DOC: fill out bold links and rephrase

DOC: fill out link to gotchas

DOC: add gigantic install.rst warning

DOC: move version note about html5lib to first mention of it

DOC: add same to readme and add boto to install.rst

DOC: add anaconda note

DOC: add note about debian based system installation

DOC: add correct lexer for pygments formatting of code snippets

DOC: move boto up
Merge pull request #3751 from cpcloud/read-html-bs4-install-docs

DOC: document bs4/lxml/html5lib issues
DOC: minor issue with the description of the names attribute of multiindexes
BUG: (GH3611) revisited; read_excel not passing thru options to ExcelFile.parse

API: add string and numeric versions of na_values when parsing
Merge pull request #3758 from jreback/parse_na

BUG: (GH3611) revisited; read_excel not passing thru options to ExcelFile.parse
TST: failing test on py3k in test_expressions, trying to use 'div' operator