FMSLogo Code

Rename "commandarg" to "g_FileToLoad" to be more explicit about its intended purpose.

Fix an inaccurate comment.

Redeclare bWidth and bHeight as static, since they are never used outside of main.cpp.

Fix the logic for moving down off of the commander history to the commander's input.

Add logic for copying the currently selected item in the commander history to the commander input.

Add the wxWANTS_CHARS style so that directional keys are passed to OnChar(). This enables the MSWLogo-style commander navigation.

Add a missing newline to a printf diagnostic.

Eliminate a string copy in reader() to try to make it a little faster. Performance tests show a small improvement in the benchmark for READWORD, but that may just be randomness.

Remove CDynamicBuffer::GrowTo() because it was never used.

Do some minor code tightening in reader() to make READWORD a little faster.