Add riak-1.4 conf

Import the "brew" version
Use the eleveldb backend
Use the canonical app.config
Merge branch 'feature/1.4-riak' into dev

Fixes #12
Remove the userId key from all JSON

The user is now Identified by the HAWK Credentials
Add userId to project
Remove userId from time_entries model

Add useful error if the userId or projectId are missing
Use the req.user.id when making time entries
Remove skipped project test
Merge branch 'feature/user-req-user' into dev

Close #11
See #10