This reverts commit 6bbd3efc.

Updated script generators to show a nice warning if setuptools/distribute can't be found during execution.

Conflicts:
	docs/installing.txt

Conflicts:
	docs/conf.py
	pip/__init__.py
	setup.py

Updated name of installer script to get-pip.py and updated docs to mention that script in the installation instructions.

Added build-installer script to build install-pip.py script, a standalone version of pip that installs itself. Also updated build-standalone script to use the new packager contrib tool.

Change pypi.appspot.com to b.pypi.python.org in the tests, as pypi.appspot.com is gone and the site owner was annoyed with all the testing requests ;)