Port to EEL 0.3.7 #1
Description
Port the (ancient) code to EEL 0.3.7!
Operator precedence was replaced with strict left-to-right evaluation, and various other language changes. EBGUI is also part of Eeelium (formerly EELBox), which is installed along with EEL, so we shouldn't include our own version. (EEL and EBGUI will be upgraded to SDL2 soon, and eventually, EBGUI will probably be merged with the OpenGL GUI toolkit in Kobo II.)