BUG: Fix to_datetime to properly deal with tz offsets #3944

Currently for certain formats of datetime strings, the tz offset will
just be ignored.
CLN: clear up some cython warnings
CLN: eliminate bootstrapping issue form generate_code.py
TST: fix undefined variables hidden by unintended test method shadowing
BLD: ipython_directive, handle non-ascii execution results
BLD/DOC: docs conf.py, force pandas to alwayd output utf8 on eall systems (win)
BLD/TST: @network, inspect formatted expection rather then str(e)
Revert "TST: skip the get_quote_stringlist in TestYahoo....failing from network issues too much"

This reverts commit 0c938e600f5aaecc565ca945037dd8ef7160cf05.
Merge pull request #6192 from y-p/PR_network

BLD/TST: @network, inspect formatted expection rather then str(e)
Merge pull request #6185 from y-p/PR_ip_d_unicode

BLD: ipython_directive, handle non-ascii execution results
Small spelling fixes in find_undoc_args.py
DOC: cleanups
Merge pull request #6196 from bwignall/quickfix-find_undoc_args

CLN: Small spelling fixes in find_undoc_args.py
CLN: test_timeseries_legacy, specialize assert_

GH6175: replacing "assert_" with specialized form assertEqual. WIP: have not adjusted any instances of assert_( (... == ...).all() )
CLN: test_timeseries, specialize assert_

GH6175: replacing "assert_" with specialized form assertEqual. WIP: have not adjusted any instances of assert_( (... == ...).all() )
BUG/TST raise a more detailed error when GH6169 occurs, added a test

Raise a detailed error when a `columns` argument is passed through 'where' to
select a multiIndexed Dataframe from an HDF store. Wrote a test
showcasing the bug

	modified:   pandas/io/pytables.py
	modified:   pandas/io/tests/test_pytables.py

making it work
BUG: correctly select on a multi-index even in the prescence of under specificed columsn spec (GH6169)
Merge pull request #6202 from jreback/mi_hdf

BUG: correctly select on a multi-index even in the prescence of under specificed column spec (GH6169)
Merge pull request #6184 from dsm054/fix-test-reshape

TST: fix test_reshape.py
DOC: styling clean-up of docstrings (part 2: series and generic.py)