HBASE-12228 Backport HBASE-11373 (hbase-protocol compile failed for name conflict of RegionTransition) to 0.98

Includes a regeneration of protobuf classes via mvn -Pcompile-protobuf ...
HBASE-12234 Make TestMultithreadedTableMapper a little more stable.

Signed-off-by: stack <stack@apache.org>
HBASE-12234 Make TestMultithreadedTableMapper a little more stable -- REVERT.
HBASE-8361 Bulk load and other utilities should not create tables for user (Ashish Singhi)

Conflicts:
	hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestLoadIncrementalHFiles.java

Conflicts:
	hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/ImportTsv.java
	hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestImportTsv.java
HBASE-12240 hbase-daemon.sh should remove pid file if process not found running (Ashish Singhi)
HBASE-12237 HBaseZeroCopyByteString#wrap() should not be called in hbase-client code
HBASE-12242 Fix new javadoc warnings in Admin, etc.
HBASE-12248 broken link in hbase shell help (André Kelpe)
HBASE-12252 IntegrationTestBulkLoad fails with illegal partition error

Signed-off-by: stack <stack@apache.org>
HBASE-12257 TestAssignmentManager unsynchronized access to regionPlans
HBASE-12258 TestHbaseFsck is flaky and has some multithreading issues

Signed-off-by: Elliott Clark <eclark@apache.org>
HBASE-12271 Add counters for files skipped during snapshot export

Add counters for skipped files

Signed-off-by: Elliott Clark <eclark@apache.org>
HBASE-9157: ZKUtil.blockUntilAvailable loops forever with non-recoverable errors
HBASE-12265 HBase shell 'show_filters' points to internal Facebook URL
HBASE-12274 Race between RegionScannerImpl#nextInternal() and RegionScannerImpl#close() may produce null pointer exception
HBASE-12261 Add checkstyle to HBase build process

Conflicts:
	dev-support/test-patch.sh
	pom.xml
HBASE-12264 ImportTsv should fail fast if output is not specified and table does not exist (Ashish)
HBASE-12229 NullPointerException in SnapshotTestingUtils (Dima Spivak)
HBASE-12161 Add support for grant/revoke on namespaces in AccessControlClient (Srikanth Srungarapu)
Update version to 0.98.8-SNAPSHOT