100nF directly at the output + 1 as close as possible of the pic is recommended. 30uF or higher would be nice at it's input. i usually use 10uF tantalum at the output as well as close to the PIC.

Any current demanding device have their own 47uF (or higher depending) + 0.1 uF as close as possible.

BOD: Brown-out detect. It's one of those configuration fuses setting for the PIC you're using.