Xcode Shortcuts workflow
------------------------

This is an Alfred Worflow which automates the following Xcode processes:

1) Creating new playground files.
2) Cleaning Xcode cache and DerivedData folders

Super simple to use:

1) Type keyword "xpg" and hit ENTER to create a new playground. You can also
supply a file name, by typing the keyword, then a space, followed by the
filename. For example, entering: "xpg hello dolly" will create playground
named "hello dolly.playground".

2) Type keyword "xclean" and hit ENTER to erase Xcode's cache files and folders
(inc. DerivedData)

Environment Variables:

1) "playgroundFolder" : path to destination folder (defaults is: "~/Desktop")
2) "xcodeVersion" : version to use when creating playgrounds (default: "Xcode")