Bump consul to a recent version

[dmlemos]

Many features have been introduced, including the UI.

cloudfoundry-community repository is running a more recent version.

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/150359859

The labels on this github issue will be updated when the story is started.

[shankj3]

+1 please do this, consul has a major release out