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-sqlalchemy_0.7.1.bb

@@ -4,7 +4,7 @@ HOMEPAGE = "http://www.sqlalchemy.org/"
 LICENSE = "MIT"         
 LIC_FILES_CHKSUM = "file://LICENSE;md5=e88f48967a8bd1fe88f5425f7e659dbf"
 RDEPENDS_${PN} += "python-numbers"
-PR = "r1"
+PR = "r2"
 
 SRCNAME = "SQLAlchemy"
 SRC_URI = "${SOURCEFORGE_MIRROR}/sqlalchemy/${SRCNAME}-${PV}.tar.gz"