Revert "HBASE-11234 FastDiffDeltaEncoder#getFirstKeyInBlock returns wrong result"

This reverts commit 494e0b50e9f57245ecfbb6be5a61e2630a119fa6.
HBASE-11227 Mention 8- and 16-bit fixed-with encodings in OrderedBytes docstring (Nick Dimiduk)
HBASE-11161 Provide example of POJO encoding with protobuf (Nick Dimiduk)
HBASE-11149. Addendum for fixing unit test
Updated POMs and CHANGES.txt for 0.98.3RC0
Amend HBASE-9857 Blockcache prefetch option; add missing license header to correct file this time
Amend HBASE-11137 Add mapred.TableSnapshotInputFormat; add missing license headers on branch 0.98
Amend HBASE-11161 Provide example of POJO encoding with protobuf; Add explicit dependency on protobuf-java to hbase-common for Hadoop 1
HBASE-11251-LoadTestTool should grant READ permission for the users that
are given READ access for specific cells (Ram)