Added support for Markdown and VTT subtitles

• Added support for Markdown (CommonMark, GitHub Flavored Markdown, Pandoc and other dialects)
• Added support for VTT Subtitles (WebVTT)

Improved thread safety

• Improved thread safety

Cumulative updates

• Improved catalog
• Improved support for Articulate files
• Updated XMLJava and BCP47J
• Ignored empty sources and empty targets
• Updated CopySources

Improved handling of threads in resegmenter

• Improved handling of threads in resegmenter

Extracted context info from SLXLIFF and XLIFF 1.2

• Extracted context info from SLXLIFF and XLIFF 1.2 files
• Extracted "lang" as translatable from HTML files
• Updated XMLJava and BCP47J
• Fixed detection of QTI files

Parallelized conversion of IDML files

• Parallelized conversion of IDML files
• Removed Resegmenter class

Improved support for XLIFF from Articulate and validation of XLIFF 2.x

• Improved support for XLIFF 1.2 from Articulate (https://www.articulate.com/)
• Improved validation of notes from XLIFF 2.x

Improved language validation and IDML filter

• Allowed private-use language tags on XLIFF validation
• Improved IDML filter

Fixed validation and improved Office support

• Fixed handling of fake tags in MS Word
• Fixed / validation
• Added support for Excel tables

Fixed path handling for plain text files

• Fixed path handling for plain text files