mate-calc 1.25.1 release

Changes since the last release: v1.25.0...v1.25.1

mate-calc 1.25.1

• Translations update
• build: abort configuration when development library for MPC is missing
• history view follows preferences
• mp-serializer: init MPNumbers outside of loop
• mp.c: mp_reciprocal: fix when calling it with same arguments.
• mp-serializer: fix memory leaks reported by valgrind
• math-buttons: fix memory leaks reported by valgrind
• factorization: display prime factors in fixed number format
• build: add configure summary
• build: Use PACKAGE_URL variable
• build: Use config.h which defines GETTEXT_PACKAGE & VERSION
• Update copyright to 2021
• insert character dialog: add spacing, remove invisible char
• remove unused trunc button from programming mode
• Remove warning about unused parameters in ìnt main function
• financial: Remove warnings about unused parameter 'equation'
• math-buttons: Remove warnings about format not a string literal
• Remove unused macros
• Show factorization in history view.
• Show exponents in factorization.
• Update Readme
• Remove USE_MATE2_MACROS from autogen.sh (legacy)
• Fix most conversion warnings.
• Improve factorization speed
• fix calulation of x^q, where 1/q is a negative integer
• Clear answer if editing right before it
• Refresh bits panel after calculation
• Correct Astronomical unit (to 149597870700 m)
• mp-convert: Remove trailing spaces/tabs
• Implement navigation through history stack equations using keyboard
• fixes incorrect parenthesis handling