Fix bare phrases in calm-down
Coffeescript's block regex syntax ignores whitespace, so recognizing whitespace in a phrase would require \s; but I just converted it to one line.
Document helpful manatee option
Fix manatee detection
Adds word boundaries to yelling regexp for more appropriate
administration of manatees.
calm-down: If env var HUBOT_LESS_MANATEES is set, don't check for caps
simple script to cool things off