Translate intro-yii.md into Brazilian Portuguese
Merge branch 'master' of git://github.com/yiisoft/yii2 into intro-yii-pt-br
Translate intro-upgrade-from-v1.md into Brazilian Portuguese
Merge branch 'master' of git://github.com/yiisoft/yii2 into pt-br-translations
Add my name to pt-BR translation team
Merge pull request #3844 from alanwillms/pt-br-translations

Brazilian Portuguese translation for Yii intro and upgrading from version 1.1