Copy pylibmc 1.2.3 from gentoo-x86
Switch to distutils-r1
Add || die to tests and skip defining default DOCS
Support pypy 1.9 & 2.0
Version bump: bitset 2.8.2

Had to switch SRC_URI since github no longer hosts files.
This also forces us to use autotools to generate the environment.
Nitpicks (and repoman check)
Merge branch 'pylibmc-distutils-r1'

Conflicts:
	dev-python/pylibmc/pylibmc-1.2.3.ebuild