Still says it depends on old version of pdftables

[Tom Mortimer-Jones]

Setup.py and requirements-test.txt still have pdftables 0.0.3 in them. In our fork the tests will fail if we are not using the newer (closed source) version of pdftables.

FYI to install the package locally with its optional deps (e.g. pdftables) you need to do:

# activate virtualenv
cd messytables
pip install --editable ".[pdf]"