1. Improve RANDOMIZE operation. Previously, it would have same effect if called multiple times during the same clock second or by different jobs at the same time.
2. (Windows) Further cleanup of arrow characters tab(-1,64), tab(1,65). Previously, they were not showing up, or showing incorrectly or in the wrong color with fonts using the ANSI character set, and they weren't working at all when beveling was on.
3. (Windows) Graphic line drawing characters are now implemented for ANSI character sets in non-bevel mode. Previously, dashed lines were used in this case due to the fact that the ANSI character set does not include the necessary characters.
4. (Windows) Fix color problem with reverse dim graphic characters. (According to convention, graphic characters display as bright regardless of whether the current mode is dim or bright, but this should not affect dim reverse.)
