Deprecate RestClient.
Added Fail fast switch on null VIP for DiscoveryEnabledNIWSServerList.
Merge pull request #92 from allenxwang/cp

Added Fail fast switch on null VIP for DiscoveryEnabledNIWSServerList.
Merge branch 'master' of https://github.com/Netflix/ribbon into 2.x
Modified examples.
Merge pull request #93 from allenxwang/2.x

Deprecated RestClient and updated examples.