Add Android Example

[codefromthecrypt]

This is an example based on dagger's activity graph and tape's example which does a simple zone list. Credentials are configured via the preferences screen, which reads the parameter names from our Provider interface.

Remote denominator providers won't work on android until https://github.com/Netflix/denominator/pull/159 (which rids cglib dep). However, we can start playing around with the MockProvider in the mean time.

This would be a good basis for a cloud prize entry for an android app. We've discussed the name denomadroid before, but so far, no-one has started it.

[codefromthecrypt]

changed config to use ultradns. initialization on my samsung galaxy s is about 40ms and the zone list of netflix prod takes 600s or so. cc @jonbodner @jdamick

[cloudbees-pull-request-builder]

denominator-pull-requests #245 SUCCESS This pull request looks good