* Add ExpressScribe.app (free version)
This adds a cask for ExpressScribe (stylized "Express Scribe" at times),
the audio transcription software. Installs the free version of the
freemium app, which can be registered/upgraded from within the software.
Couldn't find a versioned download URL, and the developer's website
does not run in https :(
* Update expressscribe.rb
* We don’t support anything lower than 10.6 anyway. Also, always use the name, not the number.