[SPARK-5006][Deploy]spark.port.maxRetries doesn't work

https://issues.apache.org/jira/browse/SPARK-5006

I think the issue is produced in https://github.com/apache/spark/pull/1777.

Not digging mesos's backend yet. Maybe should add same logic either.

Author: WangTaoTheTonic <barneystinson@aliyun.com>
Author: WangTao <barneystinson@aliyun.com>

Closes #3841 from WangTaoTheTonic/SPARK-5006 and squashes the following commits:

8cdf96d [WangTao] indent thing
2d86d65 [WangTaoTheTonic] fix line length
7cdfd98 [WangTaoTheTonic] fit for new HttpServer constructor
61a370d [WangTaoTheTonic] some minor fixes
bc6e1ec [WangTaoTheTonic] rebase
67bcb46 [WangTaoTheTonic] put conf at 3rd position, modify suite class, add comments
f450cd1 [WangTaoTheTonic] startServiceOnPort will use a SparkConf arg
29b751b [WangTaoTheTonic] rebase as ExecutorRunnableUtil changed to ExecutorRunnable
396c226 [WangTaoTheTonic] make the grammar more like scala
191face [WangTaoTheTonic] invalid value name
62ec336 [WangTaoTheTonic] spark.port.maxRetries doesn't work