language/python: setup_install_args

Add a helper like std_cmake_args that returns the correct incantation
for invoking setup.py in a consistent way and with our preferred
arguments. Replaces setup_install.
Formula#system: hide python setup.py shim in ohai
Formula#exec_cmd: recognize setuptools shim and refurbish args
Language::Python.setup_install: add deprecation warning
use Language::Python.setup_install_args instead of setup_install
docs: use setup_install_args instead of setup_install
ansible: update 1.8.2 bottle.
awscli: update 1.6.5 bottle.
cmake: update 3.0.2 bottle.
duplicity: update 0.6.25 bottle.
git-review: update 1.24 bottle.
jrnl: update 1.9.7 bottle.
translate-toolkit: update 1.12.0 bottle.
wakatime-cli: update 2.1.6 bottle.