Most important features to add to public beta

[homebysix]

In order to release our public beta, I think we need these features:

• When the com.elliotjordan.recipe-robot.plist preferences file doesn't exist, the Recipe Robot app should automatically show the prefs window and create one. (Right now it fails to process anything if prefs don't exist.)
• Ability to access --ignore-existing from the preferences. Preferably the checkbox should appear only while holding Option, or another such minor deterrent. (Right now there's no way to access this option via the UI.)
• Ability to paste in a URL as the input path. (Currently it only accepts dragged-in apps.)

[homebysix]

Perhaps one more:

• The ability to click on a folder to navigate directly to the recipes when finished. (See here for an example of how that might look.)

Otherwise it's not visually obvious what to do after a successful run.

[homebysix]

I adjusted the instructions for the Mac app in order to compensate for these in-progress features, so it's ready to release. We'll make a new pre-release when these features get added.

[homebysix]

All these are taken care of. Go team! :hand: