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
v1.5.0 (select/deselect all, max options, etc.)

Fix #116, fix #290, fix #328, fix #329, fix #330, fix #361, fix #388,
fix #398, fix #402, fix #420, fix #421, fix #432, fix #437, fix #450,
fix #463
Merge pull request #493 from caseyjhol/master

v1.5.0 (select/deselect all, max options, etc.)
update version (1.5.0) and minify
Merge pull request #494 from caseyjhol/master

update version (1.5.0) and minify
A disabled dropdown would still open when clicked when the container property was set.
Merge pull request #496 from gaspardle/master

A disabled dropdown would still open when clicked when the container property is set
v1.5.1 (fix #495)
Merge pull request #497 from caseyjhol/master

v1.5.1 (fix #495)
"Twitter Bootstrap" is now simply Bootstrap

See http://getbootstrap.com/about/#brand
Merge pull request #505 from cvrebert/bootstrap-org-change

"Twitter Bootstrap" is now simply Bootstrap
Fix #466, fix #475, fix #470

Fixes issues with hidden options and using the data-container with
keyboard
v1.5.2
Merge pull request #506 from caseyjhol/master

v1.5.2
Fix #499
Fix #499
Fix #507
Merge pull request #508 from caseyjhol/master

Fix #507
v1.5.3

Fix issue related to data-hidden and opening the menu when typing a
letter