Update to 0.46.0
  stage_upload_pkgs:
    - delete outdated packages after uploading
    - extra files are removed from remote repo
    - no verbose flag for rsync

  Serious fixes in stage_init
    - PKG_UPDATE_SRC_SUMMARY_CMD: -m is passed to pkg_src_summary by default

  Fix in signals handling

  Fix in "make-depends" (unknown function is_true)

  Fix: distbb -a option works correctly if pkg_summary.txt doesn't exist

  upload_pkgs_all_files:
    - directories and links are also output in addition to files

  distbb checks arguments passed to -x|-X for correctness.

  Configuraton variable SUDO was renamed to to DISTBB_SUDO.
  This fixed build failure of ruby193-base

  Configuraton variable OS was renamed to OPSYS

  Stderr of pkg_summary2deps is now a part of the final report
patches/patch-distbb__chroot.in is not needed anymore
add a debug option