Ftw.upgrade

-------------------

- Reverse post upgrade adapter ordering.
The order was reversed, it should execute dependencies first.
[jone]

- create-upgrade: Make sure to quote argument passed to bin/upgrade.
[lgraf]

- Add a ``create-upgrade`` script which can be installed globally.
[jone]

- Create a ``bin/upgrade`` script:

- the ``create`` command creates a upgrade step in the "upgrades" directory.
- the ``touch`` command can be used for reordering upgrade steps.

[jone]

- New ``upgrade-step:directory`` directive for registering a directory
with upgrade steps which are automatically detected and registered.
[jone]

- Extend the importProfile directive so that a handler can be
defined. The handler may import the associated upgrade step
profile with the new method ``self.install_upgrade_profile()``.
[jone]

-------------------

- Exclude uninstalled products from upgrades view.
[jone]

- Make upgrades appear in undo form again.
The transaction note fix in 1.7.4 caused upgrade transaction to not appear in the undo form.
[jone]

-------------------

- Update upgrade view ordering for root nodes.
The dependency graph does not define any order for root
profiles (e.g. included in buildout directly), which causes
random sorting in the upgrade view for those profiles.
This change sorts those root profiles by name without changing
the order of profiles which is depended on.
[jone]

-------------------

- Wrap step.objects in a SavepointIterator that creates a savepoint every n items.
[lgraf]

------------------

- Add manage-upgrades-plain fallback view for manage-upgrades.
It does not include plone`s main template and thus might be able to render when
the default view fails for some reason.
[deiferni]

------------------

- Prevent portal_quickinstaller from picking upgrade-steps instead of the
default-profile by prefixing the profile-id with ``upgrade_to_`` (fix 45)
[pbauer]

- Flag profiles whose filesystem version is outdated.
Highlights profiles with upgrades that lead to a destination version that is
higher than the corresponding profile's current filesystem version.
This usually means someone forgot to update the version in metadata.xml of the
corresponding profile.
[lgraf]