Added pt_BR default strings

Added files to translate default messages to Brazilian Portuguese, as
suggested on silviomoreto/bootstrap-select#473
Added pt_BR default strings

Added files to translate default messages to Brazilian Portuguese, as
suggested on silviomoreto/bootstrap-select#473
Added pt_BR default strings

Added files to translate default messages to Brazilian Portuguese, as
suggested on silviomoreto/bootstrap-select#473
Added pt_BR default strings

Added files to translate default messages to Brazilian Portuguese, as
suggested on silviomoreto/bootstrap-select#473
Merge remote-tracking branch 'origin/master'
Merge pull request #486 from rdeavila/master

Added pt_BR default strings