no apparent change
Revert "no apparent change"

This reverts commit 58205171c8a04f7a35fac3d752d372d07e357b5e.
trying to fix LNPWin.txt in git
DF now won't be launched again if it's already running. The same goes for selected utilities. (Issue #5)
Made 'Play DF' button save settings before checking if DF is already running. Also changed whitespace back to tabs.
Merge pull request #19 from Nicksaurus/master

Closes #5
Merge remote-tracking branch 'origin/development' into development
build and test

Now refuses to launch DF if DF is already running; if you need a
workaround and don't mind the performance penalty you can always run it
directly.