* HBASE-20819 Use TableDescriptor to replace HTableDescriptor in hbase-shell module
* Resolve whitespace issues
* Use removeValue rather than setValue where possible in hbase-shell
* Add String removeValue overload to TableDescriptorBuilder
* Convert remaining usages of HTableDescriptor in security.rb
* Rename hcd (HColumnDescriptor) to cfd (ColumnFamilyDescriptor)
* Add back 3 constants to HBaseConstants in hbase-shell
* Fix bad constant reference
Signed-off-by: Sean Busbey <busbey@apache.org>
Signed-off-by: stack <stack@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>