BUG: Fix conditional for underlying price in io.data.options.

Refactor and regression test.
DOC: table keyword missing in the docstring for Series.plot() and DataFrame.plot()
Merge branch 'master' of https://github.com/dstephens99/pandas into dstephens99-master
Merge pull request #7698 from mortada/df_table

DOC: table keyword missing in the docstring for Series.plot() and DataFr...
DOC: fix non-ascii character (from #7698)
DOC: add release thanks note
BUG: offsets.apply doesnt preserve nanosecond