FIX: Bug in stata parser causing failure when reading dataset with string data
DOC add to_datetime to api.rst
WIP some to_datetime docs additions
WIP to_datetime docs more rewriting
FIX final tweaks
ENH add cython tutorial
FIX add cython to toctree
DOC: put release notes link to dev until 0.11.1 is released
FIX remove todos

change name to Enhancing performance
add in some sections
Merge pull request #3859 from hayd/DOC_add_to_datetime

DOC add to_datetime to api.rst
GH3969 Implement unit='D' in to_datetime
DOC: release notes
Merge pull request #3935 from PKEuS/master

FIX: StataReader
Merge pull request #3965 from hayd/cython_doc

ENH add cython tutorial
TST: Change network decorator to auto-check for network errors

TST: Enforce more strict rules about ignoring IOErrors with network tests

ENH: Allow keyword arguments to network decorator

ENH: skip try/except checks if raise_on_error
TST: Remove explicit connectivity checks in test cases.

Instead, network decorator in pandas.util.testing checks
for that instead. You have to opt into failing on tests
by setting `pandas.util.testing._FORCE_NETWORK_ERROR` to `True`.

CLN: Move imports and test skip to top of file
ENH: Add test decorator 'with_connectivity_check'.

Allows tests to check that a url is available before bubbling up
an error from a test case.

TST: Change tests to use with_connectivity_check to better approximate previous behavior

TST: Add check_before_test option to with_connectivity_check.

CLN: PEP8 all the recent jratner code
DOC: Update docs with changes
Merge pull request #3975 from cpcloud/release-notes-link-fix

DOC: put release notes link to dev until 0.11.1 is released
FIX py3ing some print statements