DB v3 + getAvgScoreByPlayer + getRandomQuestionsByCategories
Merge pull request #15 from PortuguesDoSeculoXXI/JFrameChoosingWindow

Novo layout - Checkbox's para a escolha da categoria, etc.
Merge branch 'Erro' of https://github.com/PortuguesDoSeculoXXI/PortuguesDoSeculoXXI
add gameMode on update
Merge pull request #16 from PortuguesDoSeculoXXI/master

Merge pull request #15 from PortuguesDoSeculoXXI/JFrameChoosingWindow