* lib/drb/drb.rb:  Improved documentation by adding or hiding methods.
* lib/drb/eq.rb:  ditto.
* lib/drb/extserv.rb:  ditto.
* lib/drb/gw.rb:  ditto.
* lib/drb/invokemethod.rb:  ditto.
* lib/drb/observer.rb:  ditto.
* lib/drb/ssl.rb:  ditto.
* lib/drb/timeridconv.rb:  ditto.
* lib/drb/unix.rb:  ditto.

* sample/drb/gw_cu.rb:  Fixed bug in DRb gateway sample.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38937 b2dd03c8-39d4-4d8f-98ff-823fe69b080e