Minor MPTW/Tiddlyspot bug

If you created an MPTW on Tiddlyspot in the last two days you might want to get rid of the autosave default in MptwConfigPlugin. Find the following line:

config.options.chkAutoSave = true; // do autosave

and replace it with this:

config.options.chkAutoSave = (window.location.protocol == "file:"); // do autosave if we're in local file