Merge pull request #2659 from hashicorp/consul

Updates Consul to pick up new version 0.7.5.

library/consul

@@ -1,4 +1,4 @@
 # maintainer: James Phillips <[email protected]> (@slackpad)
 
-latest: git://github.com/hashicorp/docker-consul@47e4cde898e8c51ff62c83cb4c779f2b42841868 0.X
-0.7.4: git://github.com/hashicorp/docker-consul@47e4cde898e8c51ff62c83cb4c779f2b42841868 0.X
+latest: git://github.com/hashicorp/docker-consul@22839eee5174a56f31f7ad29005e19c8d5cc25a9 0.X
+0.7.5: git://github.com/hashicorp/docker-consul@22839eee5174a56f31f7ad29005e19c8d5cc25a9 0.X