subversion: bump revision for dynamic linking fix
subversion: update 1.8.10_2 bottle.
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.
hide python setup.py shim in Formula#system
ansible: use Language::Python.setup_install_args
formula: recognize setuptools shim and refurbish args
ansible: update 1.8.2 bottle.