BUG: adjust to_latex column format when no index

`to_latex` was adding an extra alignment to `column_format` when the
`index` argument was False
DOC: explain travis-ci in CONTRIBUTING.md for the non-cognisanti
ENH: Adding '.' as an na_value for FRED.
Adding some tests to cover the FRED data fetching code.

This a very minimal, but it wasn't previously covered.
I've added a new to contain the tests and more or less copied code
from the test_yahoo file.
ENH: Better error message if a bad series name is passed to the
get_data_fred function.
DOC: Updated RELEASE.rst with change notes.
Merge pull request #3469 from TomAugspurger/fred_na

ENH: Adding '.' as an na_value for FRED.
ENH: Bring Series.dot up to par with DataFrame.dot
Merge pull request #3467 from kyleam/tolatex-index

BUG: adjust to_latex column format when no index
DOC: tweak indexing.rst
Merge pull request #3470 from dieterv77/SeriesDot

ENH: Bring Series.dot up to par with DataFrame.dot
DOC: add note on pickle being unsafe to docs and pd.load docstring
DOC: Arrange things for 0.11.1
BUG: GH3493 Fix cannot append DataFrames with uint dtypes to HDFStore
DOC: Inject small measure of sanity to line width on wide screen
DOC: Adds GH3493 bugfix note
BUG: GH3480 Fix regression in a DataFrame apply with axis=1

     objects were not being converted back to base dtypes correctly
Merge pull request #3502 from jreback/GH3480

BUG: GH3480 Fix regression in a DataFrame apply with axis=1
Merge branch 'master' of https://github.com/jmellen/pandas into jmellen-master

Conflicts:
	RELEASE.rst
Add mangle_dupe_cols option to read_csv/table