Looks like the left node didn't finish its initial sync – should implement a way to wait for left's initial sync in db / test

<http://buildbot.mongodb.org/builders/Linux%2032-bit/builds/145/steps/test_3/logs/stdio>

m50011| replMain: sleep 3 before next pass
m50011| Thu Apr 23 22:59:27 pull: main@127.0.0.1:53444
m50011| Thu Apr 23 22:59:27 pull: cantconn couldn't connect to server 127.0.0.1:53444 127.0.0.1:53444
m34618| Thu Apr 23 22:59:27 connection accepted from 127.0.0.1:30424
m34618| Thu Apr 23 22:59:27 end connection 127.0.0.1:30424
(mongo init):710 assert.soon failed: function ()

{ lm = ismaster( l ); assert( lm == 0 || lm == 1, "lm value invalid" ); return ( lm == 1 ); }

, msg:undefined
throw "assert.soon failed: " + f + ", msg:" + msg;
^