20200718

• Fix bug on 8.3-filename-restricted systems (e.g. DOS 6.2 or earlier) where if the KeepBackups option was disabled, saving a file would actually result in the original file being deleted if the filename had a 3-character long file extension (due to the way a tilde character was being appended to the filename when the backup filename was being generated). Whoops!
• Screen is now cleared before running shell commands.

20190331

• Built against Watcom C/C++ 11.0 and DOS/4GW. Able to be used to launch DOS/4GW-based tools now via Run/Compile menu options without crashes.
• Fixed the ScreenSizeX and ScreenSizeY global config properties so that they are actually used under DOS.