Products-cmfquickinstallertool

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- Removed no longer needed check for CMF < 2.1.
[hannosch]

- Added missing test dependency on Products.CMFCalendar.
[hannosch]

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- Further optimized the `handleBeforeProfileImportEvent` logic. We ignore any
non-installable profiles.
[hannosch]

- Changed tests to use addProfile instead of addProduct to install this
package, as we don't have an Extensions.Install module ourselves anymore.
[hannosch]

- Updated package metadata and cleaned up old code.
[hannosch]

- Declare package dependencies and fixed deprecation warnings for use
of Globals.
[hannosch]

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- Do not use the GenericSetup profile version: the profile version has
no relation to the package version.
[wichert]

- Do not use the GenericSetup profile version: the profile version has
no relation to the package version.
[wichert]

- Fixed actions installation tests.
[hannosch]

- Cache listInstallableProducts in event handler to improve portal
creation time.
[stefan]

- Use aq_parent(aq_inner()) to get at the portal root, otherwise
we can end up getting the quickinstaller tool by accident if
it's acquired through itself.
[sidnei]

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- Applied a tiny fix that caused good installations to fail during
log generation.
[gogobd]

- Use aq_base on all attribute retrieval during InstalledProduct's
cascade deletion so we don't inadvertently try to delete something
retrieved via acquisition.
[rafrombrc]

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- Improved getInstallMethod to log ImportError instead of silently skipping
it. It was unclear why product does not appear in QI even if there is no
error raised on instance startup.
[naro]

- Prefer sorting the list of installable and installed products by title
instead of id.
[hannosch]

- Correct handling of products with pre-CMF2.1 style actions
[wichert]

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- The same error should be displayed only once even if it occurs with the
old style install method and with the GenericSetup profile
[encolpe]

- The getInstallMethod should ignore ImportError when looking for install
methods for a product. This makes it possible to install products which
have a working GenericSetup profile but a broken Install external method.
[wichert]