for Mac ComMIT_1_8_3_Mac.dmg
(double click, drag ComMIT app to Applications folder).
(If you get the "corrupted" error when you run, or
"Blocked because it was an unidentified developer, try
System Preferences->Security & Privacy->Allow apps downloaded from: Anywhere, or "Open Anyway")
for Linux ComMIT_1_8_3_Linux.jar
(to run, type command: "java -Xmx2000m -jar ComMIT_1_8_3_Linux.jar")