FIX: issues 1 and 3

[PauloFerreira25]

---- PT_BR ---- Ola, por favor, aceite o meu pull request.

Fiz o lock da versão 4.3.0 da biblioteca node-oauth/node-oauth2-server. https://github.com/node-oauth/node-oauth2-server/blob/v4.3.0/package.json

Usei ela como base para implementar as correções.

Acredito resolver os itens: https://github.com/node-oauth/express-oauth-server/issues/1 https://github.com/node-oauth/express-oauth-server/issues/3

Por favor, preciso de que alguém resolva o item: https://github.com/node-oauth/express-oauth-server/issues/2

Qualquer duvida, estou a disposição.

---- EN_US ---- Hello, please accept my pull request.

I locked version 4.3.0 of the node-oauth/node-oauth2-server library. https://github.com/node-oauth/node-oauth2-server/blob/v4.3.0/package.json

I used it as a base to implement the fixes.

I believe to solve the items: https://github.com/node-oauth/express-oauth-server/issues/1 https://github.com/node-oauth/express-oauth-server/issues/3

Please, I need someone to resolve the item: https://github.com/node-oauth/express-oauth-server/issues/2

Any questions, I am available.

[jankapunkt]

superceded by #7