project template using mix elixir
introducting riak core dependency

needed to manually inclue all deps as there is not transitive deps.

some problems with mix and riak_core
mix not able to fetch branch dependecies for mochiweb, which failed the
compilation of webmachine.

mix needs fix? so removed the deps on webmachine.
using similiar technique like yrashk did
restructing the app to match OTP style apps.

for consistency and easy of building releases