Amberfish v1.7.0
* Free-text queries are supported using a new option "-q", as an
alternative to Boolean queries ("-Q").
* Boolean operators "and" and "or" can now be used instead of "&" and
"|".
* The user documentation has been updated and converted to AsciiDoc.
To produce HTML: cd doc && gmake html
* The Porter stemmer is now included with the source files.