Enable oslo.limit to be installed from git repo

oslo.limit isn't currently in the list of libraries that can be
installed from a git repo via LIBS_FROM_GIT.

This adds oslo.limit to enable integrated testing against unmerged
oslo.limit changes.

Change-Id: I26cc567fdf4c84014040ae586bbb029b8de7a236
diff --git a/lib/libraries b/lib/libraries
index 67ff21f..9ea3230 100755
--- a/lib/libraries
+++ b/lib/libraries
@@ -38,6 +38,7 @@
 GITDIR["oslo.context"]=$DEST/oslo.context
 GITDIR["oslo.db"]=$DEST/oslo.db
 GITDIR["oslo.i18n"]=$DEST/oslo.i18n
+GITDIR["oslo.limit"]=$DEST/oslo.limit
 GITDIR["oslo.log"]=$DEST/oslo.log
 GITDIR["oslo.messaging"]=$DEST/oslo.messaging
 GITDIR["oslo.middleware"]=$DEST/oslo.middleware
@@ -102,6 +103,7 @@
     _install_lib_from_source "oslo.context"
     _install_lib_from_source "oslo.db"
     _install_lib_from_source "oslo.i18n"
+    _install_lib_from_source "oslo.limit"
     _install_lib_from_source "oslo.log"
     _install_lib_from_source "oslo.messaging"
     _install_lib_from_source "oslo.middleware"