fixed issue #219
Merge branch 'master' of https://github.com/graphite-project/carbon
Revert "fixed issue #219"

This reverts commit 0e64a1dc28b39ce8e45a97f241144d1cce052344.
Fix issue #219 using approach from @brutasse in [graphite-web commit
d231f2f7f](https://github.com/graphite-project/graphite-web/commit/d231f2f7f)
to allow overriding of install location with ```GRAPHITE_NO_PREFIX=1 pip install [--install-option=--prefix=...] ...```.
Merge branch 'master' of https://github.com/graphite-project/carbon
Merge pull request #232 from mbogosian/master

Fix issue #219 using same approach as has now been committed to graphite-web.