FMSLogo Code

Update the test pass to include the output from new tests in bitmap.lgo.

Rewrite the Windows-specific part of WriteDIB() to use more wxWidgets API.
This gets the code closer to working on GNU/Linux, although it still has some windows-specific functions.

Update the expected test output, which includes some new tests for APPLY.

Add BITSAVE.8BPP.FULLSCREEN
This tests a special code path where a new HBITMAP does not need to be created.

Update DRIBBLETEST.PO.UNICODE to account for Bug #601 being fixed.

Add a comment.

Simplify the logic for printing a line of a procedure to the Commander in po_helper().
This previously used the single parameter overload of printfx() to prevent a buffer overflow because Borland's compiler didn't implement sprintf.
FMSLogo is no longer compiled by Borland's compiler, and printfx() now uses swprintf, so the original motivation for the complicated code is no longer relevant.

Declare CanCut, CanCopy, and Replace as virtual functions.
This was done to fix warnings in gcc.
I don't know why these weren't virtual or what making them virtual fixes, but it seems reasonable that if the base class wanted to do any of those things, that it should use our implementation.

Fix Bug #385; Deleting the window from the setup callback of WINDOWCREATE no longer reads freed memory.

Replace DebugBreak with wxTrap so that the DEBUGALLOC environment variable works on GNU/Linux.