  * add missing manpages for syncompare and syncevo-http-server
  * tighten dh-missing to stop just warn about filtes not installed:
    either fix install or list in "not_installed" with explanation
  * The following libs do not install by default, we need to 
    check if it is necessary: 
    platformtde.so
    providergoa.so
    synctdepimabc.so
    synctdepimcal.so
    synctdepimnotes.so
    syncpbap.so  
  * fix FTPFS with g++-11;
    see <https://gitlab.freedesktop.org/SyncEvolution/syncevolution/-/issues/167>
