added Liberbot moderation capability

see comment in moderation.lua for info

added capability to create a json "database"

config.lua.default

@@ -1,5 +1,6 @@
 return {
 	bot_api_key = '',
+	lastfm_api_key = ''
 	biblia_api_key = '',
 	giphy_api_key = 'dc6zaTOxFJmzC',
 	time_offset = 0,
@@ -43,5 +44,12 @@ return {
 	},
 	people = {
 		['55994550'] = 'topkecleon'
+	},
+	moderation = {
+		realm = -0,
+		data = 'moderation.json',
+		admins = {
+			[0] = 'nickname',
+		}
 	}
 }