HBASE-11252 Fixing new javadoc warnings in master branch.(Anoop)
HBASE-11215 Deprecate void setAutoFlush(boolean autoFlush, boolean clearBufferOnFail)
HBASE-11234 Addendum for PrefixTreeArrayScanner
HBASE-8970 [book] Filter language documentation is hidden (Misty Stanley-Jones)
HBASE-11255 Negative request num in region load (Liu Shaohui)