reduce deletion backoff time from 24h to 1h

lib/common/defaults.js

@@ -11,7 +11,7 @@ Defaults.MAX_TX_SIZE_IN_KB = 100;
 Defaults.MAX_KEYS = 100;
 
 // Time after which a Tx proposal can be erased by any copayer. in seconds
-Defaults.DELETE_LOCKTIME = 24 * 3600;
+Defaults.DELETE_LOCKTIME = 1 * 3600;
 
 // Allowed consecutive txp rejections before backoff is applied.
 Defaults.BACKOFF_OFFSET = 3;