Changes:

• Highlight unmatched parenthesis (with red color)
• Option to colorize background of highlighted parenthesis when light theme is used
• New functions: reshape(), circshift(), replacePart()
• Functions mergevectors() and area() renamed to slice() and part()
• v[i, ...]=... syntax for assignment of part of matrix/vector variable
• Improve language handling for functions, units, and variables
• Limit the range of supported arguments in bessely, besselj, binomial, and igamma functions (to avoid segfault and very slow unabortable calculations)
• Fix handling of single quotation marks