idlj has supported generating POA specific skeltons for some time, but prior
to Merlin, this was an unsupported and undocumented feature, since we did not
ship the POA. We are shipping the POA in Merlin, and so we need to change the
behavior

Currently, the -poa flag causes idlj to emit POA based skeletons, if skeletons
are emitted.

The desited change is to make POA generation the default, and replace the
-poa flag with a new -implbase flag to enable generation of the legacy skeletons.

*******************************************************************************
###@###.### 2001-11-30

Fix verified ok
- With build: j2sdk-1_4_0-rc-bin-b88-solsparc-28_nov_2001
- With tests:
  1) /java/idl/ws/rip/RIP_TEST_MASTER/tests/product/rmi-iiop/Hello/javaidl
     for -oldImplBase option
  2) /java/idl/ws/rip/RIP_TEST_MASTER/tests/api/poa/adapteractivator
     for -poa as default option of idlj
*******************************************************************************