Python libgapi demo

See: https://github.com/gluster/libgfapi-python
and: http://blog.gluster.org/2014/04/play-with-libgfapi-and-its-python-bindings/


To repro:

rhc app create libgfapi python-2.6
cd libgfapi
git remote add repro https://github.com/lcarstensen/libgfapi-openshift.git
git pull repro master
./download-gfapi-libs.sh
git add usr
git commit -a -m 'add RH supported libs'
git push origin master
rhc set-env GLUSTERSERVER=foo.example.com GLUSTERVOL=examplevol -a libgfapi
# The following has no effect, but just proves the point that adjusting
# LD_LIBRARY_PATH has no effect.
export REPODIR=`rhc ssh libgfapi printenv OPENSHIFT_REPO_DIR`
rhc set-env OPENSHIFT_GFAPI_LD_LIBRARY_PATH_ELEMENT=$REPODIR/usr/lib64:$REPODIR/usr/lib64/glusterfs/3.6.0.29/xlator/mount -a libgfapi

rhc ssh libgfapi app-root/repo/example.py