FMSLogo Code

Increment the version to 8.3.0 to prepare for a formal release

Ban "non-negative" and "non-zero"
The forms without hypens are now preferred in technical literature.
See "Mathematical Writing" by Donald Knuth.

Ban "lefthand" for the same reason that "left-hand" was banned.
(Adding "hand" is superflous and colloquial)

Replace the example in SCROLLX and SCROLLY with something that does something useful.

Fix Bug #475 SCROLLX/SCROLLY now round any decimal inputs they are given, instead of scrolling to an undefined location.

Document the scrollbar position members of MACHINE's output.
These were added for feature request #131.

Allow JPEG in logohelp.xml
This is part of the copyright notice, now that fmslogo links to libjpeg.

Document that the input to SCROLLX and SCROLLY is in pixels

Implement feature request #131; MACHINE output now includes the screen window's scrollbar positions.
This enabled better testing of SCROLLX and SCROLLY.

Enhance MACHINETEST.SMOKETEST to check the last two items in the list