Collective.js.jqueryui

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- Fix: Do not try to cook css resources in Plone 5.2.
[jensens]

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- Fix: Do not try to cook js resources in Plone 5.2.
[jensens]

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- Workaround: ResourceRegistry was removed in 5.2.
[jensens]

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- 2.1.0 was a brown bag release with broken setup.
[jensens]

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Bug fixes:

- Added uninstall profile
[agitator]

- Python 2/3 compatibility
[pbauer]

- Simplify resource registration for Plone 5 the way done in
https://github.com/collective/example.p4p5#cssjs-declaration-in-plone-5
[rnix]

- Cleanup GS profiles to install properly in Plone 5
[rnix]

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- Fix bad release : https://github.com/collective/collective.js.jqueryui/issues/31
[bsuttor]