- Update to version 1.2.6
* Introduce canvas' width/height variables and refactor canvas
creation.
* Refactor the ANSI loader to use a state machine.
* Remove systematic filtering of Form Feed characters in Amiga mode
* Correct values for TUNDRA_COLOR_FOREGROUND and
TUNDRA_COLOR_BACKGROUND.
* Switch to using reallocarray(3) in the ANSI and PCBoard loaders
* Add a compat layer for systems which do not have reallocarray(3)
* Refactor canvas allocation for retina output
* Introduce the ANSILOVE_RANGE_ERROR macro, for values out of
allowed range
* Error gracefully if canvas' width or height is equal to zero
* Remove an useless comparison in drawchar()
* Add some file format integrity checks in the Tundra loader
* Refactor error handling in several loaders