Collective.sortmyfolder

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- Fix reversing the current order in Plone 4. This does not work in
standard folders, so we do not show the option to sort on position
anymore in that case. But plone.folder 1.0.5 (which was included
first in Plone 4.3.3) improves things, so when that version is
available, we offer simple reversal of the current order.
[maurits]

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- Change capitalisation of ID sort field name from ``Id``.
[davidjb]
- Change action to be displayed if a default view is configured for a folder.
[davidjb]

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- Add option to sort by id.
[maurits]

- Hide the custom field by default. Show it with Javascript.
[maurits]

- Fix javascript for newer jquery versions in newer Plones, not using
the ``jq`` alias.
[maurits]

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- Fixed manifest for rst files [micecchi]

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- Fixed uninstall step for skin layer [micecchi]

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- Moved to https://github.com/collective/collective.sortmyfolder
[maurits]