Handle figsize= correctly in plot_series
BUG: Fix broken YearBegin offset. Closes #2844.
BUG: Fix corner case in YearBegin
STY: Remove unnecessary old code.
TST: Use correct expectations for AS in tests
BUG: take into account adjoin width, closes #3201
fix docstring for date_parser option
API: raise TypeError out of GroupBy.agg
DOC: release noets
BUG: anchored week to_timestamp conversion run #2742
Merge remote-tracking branch 'jseabold/fix-2844'

* jseabold/fix-2844:
  TST: Use correct expectations for AS in tests
  STY: Remove unnecessary old code.
  BUG: Fix corner case in YearBegin
  BUG: Fix broken YearBegin offset. Closes #2844.
BUG: fix segfault introduced by prior #2981 fix
Raise more specific exceptions when parsing fails

The pandas.io.parsers module raises a generic exception when a file cannot be
found or opened.  This is not consistent with other Python modules which
typically raise the more informative (and specific) IOError.  This change should
make the exception handling more consistent and more informative.
DOC: modify sphinx theme to use global TOC
DOC: remove OLS docs, it's in statsmodels now
DOC: css tweaks to sphinx theme
DOC: css tweaks to sphinx theme
DOC: rephrase paragraph
DOC: uniform image width in docs
DOC: use display.mpl_style='default' in figures