IntegrationTestFormattedRowKeys becomes TestFormattedRowKeys.

Signed-off-by: Aaron Feldstein <afeldstein@wibidata.com>
IntegrationTestKijiPager becomes TestKijiPagerGetScan.

Signed-off-by: Juliet Hougland <juliet@wibidata.com>
SCHEMA-262. KijiIOException: RuntimeException wrapping IOException

 - HBaseKijiRowData constructor may throw IOException.
 - Scanner/Pager cannot throw IOException because Iterator does not
   allow it, thus requiring wrapping.

Signed-off-by: Aaron Kimball <aaron@wibidata.com>