Changes

The spelling checker uses [https://en.wikipedia.org/wiki/MySpell MySpell] dictionaries -- the same ones that [http://www.documentfoundation.org/download/ LibreOffice] and NeoOffice use. Unfortunately, they bury them in their application bundles, so you can download them [http://archive.services.openoffice.org/pub/mirror/OpenOffice.org/contrib/dictionaries/ here]. You need to install them in /Library/Dictionaries, and you'll need to authenticate as an administrator to do so. If you have one of them installed and know how to make symbolic links from the command line, you'll find them in Contents/share/uno_packages/cache/uno_packages, scattered about in the hash-named directories. You'll need to link both the aff and dic files (e.g., en_US.aff and en_US.dic).