Adding prepend_migrate?

Author: todb

lib/msf/core/exploit.rb

@@ -1242,6 +1242,15 @@ def handler_enabled?
 		not datastore['DisablePayloadHandler']
 	end
 
+	#
+	# Returns the state of the PrependMigrate option
+	# See https://github.com/rapid7/metasploit-framework/pull/917
+	# for discussion.
+	#
+	def prepend_migrate?
+		datastore['PrependMigrate']
+	end
+
 	##
 	#
 	# Handler interaction