Plone.app.imagecropping

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- Add Spanish translation
[erral]

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- Align editor template layout to Plone standards and place it within ``content-core`` macros.
[thet]

- Restrict image in navigation tab to not exceed the tabs size.
[thet]

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- Fix: Scales got lost after content with image was modified.
This is solved by using the new scale factories from ``plone.scale``/``plone.namedfile``.
Needs plone.namedfile 4.0+ and plone.scale 1.5+.
[jensens]

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- Fix: Enable accidentally disabled JS bundle in resource registry.
[jensens]

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- Give IImageCroppingBehavior a shortname.
[jensens]

- Fix: Make croppingeditor play nice with pat-modal.
[jensens]

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- Run i18ndude and translated new/missing strings to German.
[jensens]

- Use more modern cropper Javascript library, kick out JCrop and rewrite all JS.
It uses patterns now to initialize the cropper and image selections.
[jensens]

- Code refactoring and big overhaul to make it work with Plone 5 (only) and the new JS.
[jensens]

- Housekeeping: upgrades at one place, zca decorators, travis caching
[jensens]

- Added more Dutch translations.
[maurits]

- Added French translations.
[laulaz]