don't use pip -e install for libraries

libraries in openstack shouldn't be installed editable, as it
causes all manner of issues (especially complicated by the use
of namespace packages). Install these globally as part of the
devstack installation process.

Change-Id: I11acb169e74069be0618e57496ff342f9e788493
diff --git a/lib/stackforge b/lib/stackforge
index dca08cc..e6528af 100644
--- a/lib/stackforge
+++ b/lib/stackforge
@@ -40,10 +40,10 @@
     cleanup_stackforge
 
     git_clone $WSME_REPO $WSME_DIR $WSME_BRANCH
-    setup_develop_no_requirements_update $WSME_DIR
+    setup_package $WSME_DIR
 
     git_clone $PECAN_REPO $PECAN_DIR $PECAN_BRANCH
-    setup_develop_no_requirements_update $PECAN_DIR
+    setup_package $PECAN_DIR
 }
 
 # cleanup_stackforge() - purge possibly old versions of stackforge libraries