python: bump PR of packages after update of distutils.bbclass

* Bump every recipe inheriting distutils or setuptools and
  not overriding do_install without calling distutils_do_install.

Signed-off-by: Andreas Oberritter <obi@opendreambox.org>

meta-oe/recipes-devtools/python/python-docutils_0.5.bb

@@ -3,7 +3,7 @@ HOMEPAGE = "http://docutils.sourceforge.net"
 SECTION = "devel/python"
 LICENSE = "PSF"
 LIC_FILES_CHKSUM = "file://COPYING.txt;md5=ac6ee29ac0310c091afab5ac4bea2fa3"
-PR = "r1"
+PR = "r2"
 
 DEPENDS = "python"