building skeletons of exceptions

lib/exceptions.rb

@@ -1,9 +1,16 @@
-class PastebinnerError < StandardError
+module PastebinnerError 
 
-  def ArgumentError
+  class ArgumentError < StandardError
+  	def message
+		"Invalid argument"
+		end
   end
 
-  def ConfigError
+  class ConfigError < StandardError
+		def message
+		"Invalid configuration"
+		end
   end
 
 end
+