Version 1.0.2

This is a small release which adds two new features for MacOS X:

• Adds a --check option to update the MacOS X launchd path (in case the app's path changed, for example during a brew update).
• Automatically searches for the tarsnap CLI in /usr/local/bin (which is where brew puts it, but this directory is not added to the $PATH for GUI apps).

It also includes two bugfixes:

• The MacOS X app->"get info" now displays the version number.
• An existing job's options can now be saved to disk.