Collective.quickupload

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- Add controlpanel option "Use id as title" to not prettify
the title but use the id ('my-file.jpg' instead of 'my file')
[maurits]

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- Also render the portlet when viewing a default page.
Fixes 34.
[maurits]

- Updated Dutch translations.
[maurits]

- Added unittest2 to test requirements on Python 2.6.
[maurits]

- Set content type to application/json. text/html fails with plone.protect
3.0.11 (and is wrong anyway).
[reinhardt]

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- Add property 'Choose unique file id'.
In addition to the 'Override by upload file' it is possible
to use unique file ids. The advantage of this is, that you
can upload files without overriding them and without an
error if the file already exists
[elioschmutz]

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- Move handling of ConflictErrors to client side.
This allows Zope to resolve most write conflicts by reytring the transaction.
(see https://github.com/collective/collective.quickupload/pull/49).
[lgraf]

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- jQuery 1.9 compatible
[vincentfretin]

- Reimplement 'copy' dopEffect for Chrome, Safari and Firefox. IE always shows
a 'move' dropEffect.
Check issue (https://github.com/collective/collective.quickupload/pull/47)
for more details.
[mathias.leimgruber]

- Fix file size check that occurs for uploads without the HTTP_X_REQUESTED_WITH
request header set.
[damilgra]

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- Use same function to detect mimetypes in flash & quick upload.
[tschanzt]