Products-cmfquickinstallertool

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- Fixed two missing imports in utils.py. This closes
http://dev.plone.org/plone/ticket/5529.
[hannosch]

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- Some general spring cleaning.
[hannosch]

- Avoid DeprecationWarning for product_name.
[hannosch]

- Added methods to display Products directory and debug mode (if enabled)
[joelburton]

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- Cook resources when new types were added and ResourceRegistries is
installed.
[fschulze]

- If we are reinstalling do not say the product is already installed if we
see an exception but show the real error message
[wichert]

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- Fix missing import in utils.py. This closes
http://dev.plone.org/plone/ticket/4817.
[hannosch]

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- Keeping track of ResourceRegistries entries.
[zwork]

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- listInstalledProducts and listInstallableProducts now return alphabetized
lists.
[geoffd]

- Catch errors where the product is there but install cannot by compiled,
this picks up syntax errors and adds the them to an errors dict.
When listInstallableProducts is called, the errors dict is repoulated.
Also added in a few except ConflictErrors.
[andym]

- Fixing plone bug 3113, where the "uninstall" button would raise an
exception if no items were selected; this makes the uninstallProducts()
method symmetric with the installProducts() method
[optilude]