1.0-beta.26 released

Metacello 1.0-beta.26.1 released. Features:

  - fix and test coverage for bug involving a postload doit with
linear load nested inside an
    atomic load
  - when loading a project reference, do not load mcz files that are
older than the currently
    loaded mcz files (implicit version request). Older files will be
loaded if directly referenced
    from the project being loaded (explicit version request).
  - add RETRY logic to handle HTTP droppage

This is a bugfix release.

Dale