Rescue system calls and io errors in verify

Author: durran

test/tools/mongo_config.rb

@@ -340,7 +340,7 @@ def verify(verifies = 600)
             Mongo::MongoClient.new(@host, @port).close
             #puts "DbServer.verified via connection - port: #{@port} iteration: #{i}"
             return @pid
-          rescue Mongo::ConnectionFailure
+          rescue Mongo::ConnectionFailure, SystemCallError, IOError
             sleep 1
           end
         end