- stop copying the DLL to OUTDIR
- since that was the main reason for the separation between
  CliUnoApi and CliUnoApiTarget, merge the targets;
  the newly inherited variables are not expected to cause problems
- hardcode target to URE bin dir for now, no immediate need for
  multiple layers

Change-Id: I428d801ec7058e1c6374d8162a4118a3fe581978