DOC: cleanup outdated caveats for HTML parsing (Anaconda LXML)
Anaconda now ships with lxml 3.4.0:
- http://docs.continuum.io/anaconda/pkg-docs.html

http://pandas.pydata.org/pandas-docs/stable/gotchas.html#html-table-parsing

> Issues with using Anaconda
> 
> Anaconda ships with lxml version 3.2.0; the following workaround for Anaconda was successfully used to deal with the versioning issues surrounding lxml and BeautifulSoup4.

Is this still a issue, now that Anaconda ships with lxml 3.4.0? (e.g. is there a test for this)
