Ybe

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Fixed
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- Fixed QTI reader.

Other
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- Updated the structure of the QTI reader.

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Other
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- Made the analytics load more rigidly (better node structure).
- Using dacite library now when loading ybe files.

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This version should now convert QTI's and Ybe's correctly on Windows computers.

Added
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- Adds default encoding as utf-8 to the file opening instruction.

Changed
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- Changed the Yaml in the configuration class to ruamel.yaml.
- Changed multi response and multi choice answer nodes to AnswerOption.

Fixed
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- Fixed correct identifier reference.

Other
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- Adds method is_plaintext is to TextData class.
- Moved the conversion templates.
- Beautified the QTI XML output.

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- Small name change in the QTI converter.

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Added
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- Adds Docx, ODT, Markdown and HTML document writer.

Changed
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- Removed support for additional fields in the document writers.
- Refactored the QTI writer.

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Fixed
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- Fixed the QTI parser, it now correctly parses the correct answers of multiple response questions.