Fixed thinko in screen emulation that just rendered a rectangle
filled with the current background color instead of glyph #0
inline documentation
Emulator bugfix: Instructions that used the PC register as source operand read the stale PC value
still pointing at the first word of the current instruction instead of the actual PC that is
incremented each time an instruction word is read from memory
Project configuration: added support for disabling short literal inlining
UI fix for navigating by CTRL+CLICKING: Labels are now properly underlined when moving the mouse
pointer over them while the control key is being pressed