Plone.jsonserializer

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- Fix issue where deserialized rich text value got wrong default output
mimetype (got "x-safe-html" instead of "x-html-safe")
[datakurre]

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- Fix issue where invalid vocabulary value broke serialization by only warn
about it and deserializing invalid value to None
[datakurre]

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- Add support for serializing plone.app.textfield RichTextValues
[datakurre]

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- Fix issue where schema_compatible was unable to deserializer BytesLine from unicode string
[datakurre]

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- Fix issue where deserializer failed when value had extra fields to target
schema
[datakurre]

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- Add zope.schema.Bool adapter for ISchemaCompatible
[datakurre]