BLD: erase local ipython_directive
BLD: pull in latest ipython_directive from ipython 0355d3d
BLD: ipython_directive, add back okexcept
BLD: ipython_directive, enforce tight layout for mpl plots
BLD: ipython_directive, cython magic fix
BLD: make io.rst utf8-safe GH5142 GH5926
BLD: ipython_directive, decode ipython output as utf8+replace
BUG: use the "join" string in Appender decorator

The docstring for Appender decorator says that "join" parameter is used to join the docstring and addendum.  This commit brings the code in line with the documentation.
VBENCH: rename parser.py to parser_vb.py
BUG: fix broken df.info() test_info_duplicate_columns
DOC: add a couple plt.close('all') to avoid warning
DOC: fix warning + some stylistic corrections
Modified test_pow function in computation/tests/test_eval.py to use assert_allclose rather than assert_all_equal to avoid machine precision failures in TestEvalNumexprPandas/Numpy.  Fixes issue #5981.
Merge pull request #5979 from y-p/PR_VB_parser_rename

VBENCH: rename parser.py to parser_vb.py
Merge pull request #5980 from jorisvandenbossche/doc-plot-warning

DOC: add a couple plt.close('all') to avoid warning
DOC: correction of docstring dtypes/ftypes
Merge pull request #5982 from drudd/master

Modified test_pow function in computation/tests/test_eval.py to use asse...
Merge pull request #5984 from jorisvandenbossche/doc-dtypes

DOC: correction of docstring dtypes/ftypes
API: Panel.dtypes to use generic method; add tests for Panel4D for same

DOC: updated api docs for panel/panel4d
DOC: in ReST, a sublabel defines it's parent. latex complains of dupe