Merge pull request #26 from marcelobotega/css-improvements

Css improvements
Merge pull request #29 from marcelobotega/css-improvements

Melhorias gerais no chat
Merge pull request #30 from marcelobotega/css-improvements

adicionando função de autoScroll para todas as funções que alteram o messageBox
Merge pull request #32 from marcelobotega/css-improvements

Css improvements
Merge branch 'master' into css-improvements
alteração de estilo do botão de envio