Zc.recipe.cmmi

==================

- Fixed a bug in location book-keeping that caused shared builds to be deleted
from disk when a part didn't need them anymore. (695977)

- Made tests pass with both zc.buildout 1.4 and 1.5, lifted the upper version
bound on zc.buildout. (695732)

==================

- Remove the temporary build directory when cmmi succeeds.

- Specify that the zc.buildout version be <1.5.0b1, as the recipe is
currently not compatible with zc.buildout 1.5.

==================

- Remove the build directory for a shared build when the source cannot be
downloaded.

- Declared a test dependency on zope.testing.

==================

- Declare dependency on zc.buildout 1.4 or later. This dependency was introduced
in version 1.3.

================

- Use zc.buildout's download API. As this allows MD5 checking, added the
md5sum and patch-md5sum options.

- Added options for changing the name of the configure script and
overriding the ``--prefix`` parameter.

- Moved the core "configure; make; make install" command sequence to a
method that can be overridden in other recipes, to support packages
whose installation process is slightly different.

==================

Bug fix: keep track of reused shared builds.