Rename GinLogicValue to GinTernaryValue.

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: 0cfa34c25a7c8e7017cac346d954016fad0dfc16
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2014-03-31T07:26:38Z
Releases: 9.4.0
Rename GinLogicValue to GinTernaryValue.

It's more descriptive. Also, get rid of the enum, and use #defines instead,
per Greg Stark's suggestion.

Files