Added pandas.io.gbq module To Connect To Google BigQuery
Updated All Documentation and CI Requirements
BLD: updated print_versions for bigquery & google apiclient
TST/BUG: Make sure locales are properly tested
TST/ENH: add locale testing utils
TST: only test Google Finance if there is at least one US English locale
Merge pull request #5073 from cpcloud/travis-locale

TST/CI: make sure that locales are tested
DOC: pytables natural name docs
ENH/REF: Additional methods for interpolate

ENH: the interpolate method argument can take more values
for various types of interpolation

REF: Moves Series.interpolate to core/generic. DataFrame gets
interpolate

CLN: clean up interpolate to use blocks

ENH: Add additonal 1-d scipy interpolaters.

DOC: examples for df interpolate and a plot

DOC: release notes

DOC: Scipy links and more expanation

API: Don't use fill_value

BUG: Raise on panels.

API: Raise on non monotonic indecies if it matters

BUG: Raise on only mixed types.

ENH/DOC: Add `spline` interpolation.

DOC: naming consistency
DOC: Fix name in interpolate plot.
Merge pull request #5165 from TomAugspurger/interp_docfix

DOC: Fix name in interpolate plot.
BUG: Conflict between thousands sep and date parser.

Fixes issue where thousands separator could conflict with date
parsing.

This is only fixed in the C parser.

Closes issue #4678
BUG: fix issue #4678 for Python parser
Fixes wrong overlapping check in _can_fast_union.

To use the fast_union method it is not enough to find an overlap, the
indices also have to be aligned.
BUG: Fix appending when dtypes are not the same (error showing mixing float/np.datetime64) (GH4993)
BUG: Fix for DateOffset's reprs. (GH4638)
BUG: wrong index name during read_csv if using usecols

Closes #4201

If user passes usecols and not names, then ensure that the
inferred names refer to the used columns, not the document's
columns.
BLD: numexpr 2.2.2 fixes incompatiblity in PyTables 2.4 (GH4908)

DOC: removes incompat warning