v2.0

Mostly a maintenance release to fix error/warning messages:

• Bumps hardware.inc to v4.8.0 (thanks @tobiasvl)
• Requires RGBDS v0.6.0 or later
• Removes --disable-auto-ldh option and associated ld_long macro due to newer RGBDS version requirement
• Makes use of fstrings for a slight speed-up, so now requires Python v3.6 or later

v1.6

Changes since v1.4:

• a fix in png.py for Python v3 support, (thanks @rbong)
• improves 32KB ROM support (thanks @ISSOtm)
• the generated Makefile now uses md5 if md5sum is not available, e.g. on Linux (thanks @iAmG-r00t).

v1.4

This release adds a 1bpp option for the .image magic label to generate PNG images from tile data stored in 1 bit per pixel format.

Thanks to @bnzis for this contribution.