Update stanchion depedencies for 1.4 release

Update the dependency levels for node_package, webmachine, lager, and
riak-erlang-client in preparation for the 1.4 release.
Merge branch 'feature/update-dependencies' into release/1.4
Update deps to point at Riak 1.4.1 protobuffs updates
Roll stanchion rel version to 1.4.0
Roll stanchion app version 1.4.0
Update release notes for 1.4 release
Merge branch 'feature/1.4-release-notes' into release/1.4
Roll node_package dep to 1.3.3
Merge branch 'release/1.4' into develop