New service, /users/create. First test added as well.
Created test-wrapper for calling REST services. Added test to create tournament after first creating a user.

Re-enabled service /api/v0/tournaments/create for testing.
Updated README.md with info on running the project.
Added info reg. running tests.
Organizing services files
Added first attempt at a 'request validator', and added test to create user, sending incomplete request body.
Added build information for travis-ci and moved package.json to the root directory.