+ - multiline log entries in gcm_input. (PR 2).
+ - The input filename for gcm_input can be a command argument. (PR 9)
+ - When gcm_input can not make a connection to the database, its input
+ message will be lost. In such a case, gcm_input should store the
+ message in a spool directory for a retry later on. (PR 10)
+ - Indicate to gcm_input what type of data is delivered (PR 11)