MZX TODO:

~Provide cleaner exit implementation in file format loaders/filters
~Re-vamp the entirety of MZX's clipboard implementation
~Pray SDL weeds out some of its bothersome minutiae (as of SDL 1.2.13 it hasn't)
~Fix MIDI implementation, possibly
~Strip bad Robotic lines when exporting to text files (including notification noting which lines were not exported)
~AARGH MIKMOD)@#$(%^#$)^(#
~Increase portability to anything within reason (e.g. Wii, SPARC (64), DEC Alpha, PA-RISC, Dreamcast (SuperH))
~Make the UI unaltered when in SMZX mode
-Fix crashes with loading invalid Robotic/bytecode