Add support for TTY color palettes.

[blakev]

http://imgur.com/jM3rgQW

import logging

import daiquiri
from daiquiri.formatter import Swatches

daiquiri.setup(level=logging.DEBUG, palette=Swatches.Blue)

log = daiquiri.getLogger()
log.debug('hello')
log.info('hi')
log.warn('oh no')
log.error('gasp')
log.critical('crap..')