0.6-RC1

Features

Major

• Adds Diff View to ease filtering and comparing differences between recognition and ground truth text
• Completely refactors PAGE XML reading and writing so that the input annotation isn't discarded on saving but instead merged with the annotation in LAREX (when possible)
• Allows directly opening OCR-D workspaces by parsing the associated METS file
• Library UI overhauled to leverage the above mentioned implementation (Library View now also uses the direct request interface which was completely overhauled as well)
• Allows displaying / editing images and segmentation according to the orientation set in the PAGE XML files
• Adds displaying baselines
• Adds basic metadata editing (Creator, Comments, ...)
• Adds basic development enviroment
• Adds visibility toggle for TextLine polygons and baselines

Minor

• Adds fullscreen mode
• Updates OpenCV to v4.3.0-2
• Updates PaperJS to 0.12.15
• Updates Prima-Core-Libs to latest Git build
• Replaces custom config file with .properties file
• Refactors backend models (Polygons, Elements, ...)
• Extracts widely used code to functions and methods
• Outputs pretty printed XML files
• Adds more concrete messages to some error messages

Bugfixes

• Fixes bug which caused an error on saving when a TextLine is missing from the Region Order
• TextLines are now correctly removed in the frontend when TextRegion (or subtype) is changed to a region type which doesn't allow TextLines
• Now correctly uses XML files in savedir when loading annotations (thanks to @Witiko)
• Increased session timeouts
• Minor JS bugfixes