Trust the recorder not to give us more than we can serialize

Also run client for 10 seconds, 5 is bit too short

src/accountant_skel.rs

@@ -160,10 +160,9 @@ impl AccountantSkel {
             // See that we made progress and a single
             // vec of Events wasn't too big for a single packet
             if end <= start {
-                eprintln!("Event too big for the blob!");
-                start += 1;
-                end = start;
-                continue;
+                // Trust the recorder to not package more than we can
+                // serialize
+                end += 1;
             }
 
             let b = blob_recycler.allocate();

src/bin/client-demo.rs

@@ -137,7 +137,7 @@ fn main() {
 
     println!("Waiting for transactions to complete...",);
     let mut tx_count;
-    for _ in 0..5 {
+    for _ in 0..10 {
         tx_count = acc.transaction_count();
         duration = now.elapsed();
         let txs = tx_count - initial_tx_count;