FMSLogo Code

Tagging source code used to build FMSLogo 8.4.0

Add the result of the 8.4.0 test pass.

Update the results with the third run from the 8.4.0 test pass (after fixing a regression)

Fix a regression that stopped SETTIMER from working in the screensaver.
The problem is that there were two #if with only one #else, so the timer events never fired on their own.
This regression was not included in any official release.

Update the results with the second run from the 8.4.0 test pass (after a small fix to the test code)

Update with the results of the 8.4.0 test pass.

Add/Fix some LOCAL statements so that global variables are not leaked.

Increment the version to 8.4.0 for a formal release

Fix an inaccurate comment (code drift)

Fix an integer overflow bug in tone when running on GNU/Linux.
This was accomplished by calling gcc's __builtin_mul_overflow, which is abstracted as a macro, in case FMSLogo is compiled with some other compiler.