forward keyword args though table
added test for table zorder
remove_text=True to test to testing issues
Merge pull request #2167 from mrterry/table_zorder

[sprint] forward keyword args though table
Merge pull request #2184 from NelleV/doc_styling

ENH improved the css style of the docs
DOC modified sphinx's layout.hml

The previous sphinx layout relied on overriding a default template.
It meant we could not easily add links and other things in the header.
The new layout does not inherit from anything, hence makes it easier
to tune.