FMSLogo Code

Fix bug #2516248; READWORD output can now be safely stored in a variable, even when it contains spaces. The fix was copied from UCBLogo 5.5 and requires fixes to both the reading logic and the printing logic.

Add infrastructure necessary for a Russian translation of FMSLogo.

Remove some debugging trace statements that are no longer necessary.

Add some regression tests that drive the UI.

Add a regression test for bug #2516248.

Tighten up some of the PO tests to make sure that they print the exact expected values.

Formally thank Bob Gorman for notifying me about a bug in READWORD.

Add a hook in Help -> Examples to draw something on the main screen so that I can (later) test printing and saving as a bitmap.

Make pressing the right arrow in the commander's history box behave the same as it does in the OWL-based FMSLogo.

Add a regression test for bug #2500256, which is that SCROLLBARSET has bad error recovery logic if the max value is less than the min value.