[SPARK-2016] [WEBUI] RDD partition table pagination for the RDD Page

Add pagination for the RDD page to avoid unresponsive UI when the number of the RDD partitions is large.
Before:
![rddpagebefore](https://cloud.githubusercontent.com/assets/9278199/8951533/3d9add54-3601-11e5-99d0-5653b473c49b.png)
After:
![rddpageafter](https://cloud.githubusercontent.com/assets/9278199/8951536/439d66e0-3601-11e5-9cee-1b380fe6620d.png)

Author: Carson Wang <carson.wang@intel.com>

Closes #7692 from carsonwang/SPARK-2016 and squashes the following commits:

03c7168 [Carson Wang] Fix style issues
612c18c [Carson Wang] RDD partition table pagination for the RDD Page