4.0.4 release (dennis)
    
    - Merge #123 `Live images: add repo from another variant` (ausil)
    - Merge #125 `[image-build] Stop creating wrong arch dirs` (ausil)
    - Toggle multilib per variant (lsedlar)
    - [live-images] Code cleanup (lsedlar)
    - [live-images] Add documentation (lsedlar)
    - [live-images] Add repos from other variants (lsedlar)
    - [image-build] Stop creating wrong arch dirs (lsedlar)
    - Enable identifying variants in exception traces (lsedlar)
    - Store which deliverables failed (lsedlar)
    - scm.py: use git clone instead git archive for http(s):// (lkocman)
    - Fix filtering of system release packages (lsedlar)
    - Merge #114 `Use install tree/repo from another variant for image build`
      (ausil)
    - Make system release package filtering optional (lsedlar)
    - [image-build] Optionally do not break whole compose (lsedlar)
    - [image-build] Refactoring (lsedlar)
    - [image-build] Use repo from another variant (lsedlar)
    - [image-build] Take install tree from another variant (lsedlar)
    - Add missing formats to volumeid and image name (lsedlar)
    - [image-build] Use single koji task per variant (lsedlar)
    - Fix image-build modifying config (lsedlar)
    - Fix missing checksums in .treeinfo (lsedlar)
    - Don't crash on generating volid without variant (lsedlar)
    - Merge #99 `Add option to specify non-failing stuff` (ausil)
    - Add repo from current compose (lsedlar)
    - Fix getting compose topdir in CreateImage build thread (lsedlar)
    - Add option to specify non-failing stuff (lsedlar)
    - Allow customizing image name and volume id (lsedlar)
    - Fix notifier tests (lsedlar)
    - Publish a url instead of a file path. (rbean)
    - Add 'topdir' to all fedmsg/notifier messages. (rbean)
    - Merge #75 `Start of development guide` (ausil)
    - Merge #88 `Resolve HEAD in ksurl to actual hash` (ausil)
    - Merge #87 `Add support for customizing lorax options` (ausil)
    - Update fedmsg notification hook to use appropriate config. (rbean)
    - we need to ensure that we send all the tasks to koji on the correct arch
      (dennis)
    - Resolve HEAD in ksurl to actual hash (lsedlar)
    - Add support for customizing lorax options (lsedlar)
    - Run lorax in separate dirs for each variant (lsedlar)
    - Merge #84 `Allow specifying --installpkgs for lorax` (ausil)
    - Merge #83 `Fix recently discovered bugs` (ausil)
    - Merge #82 `indentation fixs correcting dvd creation` (ausil)
    - Merge #69 `Move messaging into cli options and simplify it` (ausil)
    - Start lorax for each variant separately (lsedlar)
    - Update lorax wrapper to use --installpkgs (lsedlar)
    - Allow specifying which packages to install in variants xml (lsedlar)
    - Add basic tests for buildinstall phase (lsedlar)
    - Fix generating checksum files (lsedlar)
    - Use lowercase hashed directories (lsedlar)
    - indentation fixs correcting dvd creation (dennis)
    - remove glibc32 from the runroot tasks (dennis)
    - fix up the pungi-fedmesg-notification script name (dennis)
    - Add overview of Pungi to documentation (lsedlar)
    - Move messaging into cli options (lsedlar)
    - Extend contributing guide (lsedlar)
    - Load multilib configuration from local dir in development (lsedlar)
    - Allow running scripts with any python in PATH (lsedlar)
    
    Signed-off-by: Dennis Gilmore <dennis@ausil.us>