Takes Consul updates from latest round of PR feedback.

library/consul

@@ -1,4 +1,4 @@
 # maintainer: James Phillips <[email protected]> (@slackpad)
 
-v0.6.4: git://github.com/hashicorp/docker-consul@d442f03c754b6faf1fc85c73e2713411ad0a2788 0.6
-latest: git://github.com/hashicorp/docker-consul@d442f03c754b6faf1fc85c73e2713411ad0a2788 0.6
+v0.6.4: git://github.com/hashicorp/docker-consul@9a59dc1a87adc164b72ac67bc9e4364a3fc4138d 0.6
+latest: git://github.com/hashicorp/docker-consul@9a59dc1a87adc164b72ac67bc9e4364a3fc4138d 0.6