- improvements to the plugin to find more method calls
- improvements to python script to remove more false+
- fix the FORCE_COMPILE_ALL build flag to include code in
  the $WORKDIR

Change-Id: I4d6015dcb9b9d60c26f0bcee8abad807177a7836
Reviewed-on: https://gerrit.libreoffice.org/19064Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>