CreateSession

	private Session createSession(String username, String password) {
		YggdrasilAuthenticationService service = new YggdrasilAuthenticationService(Proxy.NO_PROXY, "");
		YggdrasilUserAuthentication auth = (YggdrasilUserAuthentication) service
				.createUserAuthentication(Agent.MINECRAFT);
		auth.setUsername(username);
		auth.setPassword(password);
		try {
			auth.logIn();
			return new Session(auth.getSelectedProfile().getName(), auth.getSelectedProfile().getId().toString(),
					auth.getAuthenticatedToken(), "mojang");
		} catch (AuthenticationException localAuthenticationException) {
			localAuthenticationException.printStackTrace();
			return null;
		}
	}