function validateProjectName (project_name) {
    const msg = 'Error validating project name. ';
    // Make sure there's something there
    if (project_name === '') {
        return Promise.reject(new CordovaError(msg + 'Project name cannot be empty'));
    }

    return Promise.resolve();
}
Test whether given string is acceptable for use as a project name
Returns a promise, fulfilled if the project name is acceptable; rejected
otherwise.