YARM 0.6 b23
Build 23 fixes two major issues, and changes the minimum Factorio version:
- (hopefully) no more color errors, as reported in http://www.factorioforums.com/forum/viewtopic.php?p=111008#p111008;
- don't leave behind remote viewers, as reported in #3;
- change Factorio minimum version to 0.12.9, to avoid this Factorio issue: http://www.factorioforums.com/forum/viewtopic.php?t=16578.