Remove Solarized settings

With Solarized being replaced by Argo in 17c5e6f these settings are no
longer needed.
Add pylint

The new `make install-pylint` will set up the .pylintrc file in the home
folder.

`make install-python` will not install pylint along with flake8, pep8,
pep257, and pyflakes. pep8 and pyflakes are installed by flake8, but I
wanted to be explicit and list the things that I want to install.