before 0.2.0:
 * https://github.com/gabrielfalcao/lettuce/pull/224
 * https://github.com/gabrielfalcao/lettuce/pull/255
 * https://github.com/gabrielfalcao/lettuce/pull/256
 * all the "high-priority" labeled tickets
 * https://github.com/gabrielfalcao/lettuce/issues/103 (maybe)
 * https://github.com/gabrielfalcao/lettuce/issues/198
