There is only one truth. It is the source.
October 19, 2012
Tags: dvorak, intellij, karabiner, keyboard, mac os x
UPDATE: KeyRemap4MacBook is now called Karabiner
Then, you can use cmd+/ to comment and uncomment, as well as other cmd+qwerty key combinations as you would expect.
Taken from: http://youtrack.jetbrains.com/issue/IDEABKL-6493