added cats!

minor fixes to a bunch of stuff

config.lua.default

@@ -2,6 +2,7 @@ return {
 	bot_api_key = '',
 	lastfm_api_key = '',
 	biblia_api_key = '',
+	thecatapi_key = '',
 	giphy_api_key = 'dc6zaTOxFJmzC',
 	time_offset = 0,
 	locale = dofile('loc/en.lua'),
@@ -23,6 +24,7 @@ return {
 		'imdb.lua',
 		'urbandictionary.lua',
 		'hackernews.lua',
+		'cats.lua',
 		'time.lua',
 		'weather.lua',
 		'calc.lua',