Changes

This module extends the [http://www.w3.org/TR/xpath-full-text-10 W3C Full Text Recommendation] with some useful [[Querying#Functions|XQuery Functions]]: The index can be directly accessed, full-text results can be marked with additional elements, or the relevant parts can be extracted. Moreover, the score value, which is generated by the <code>contains text</code> expression, can be explicitly requested from items. All functions are introduced with the <code>ft:</code> prefix, which is linked to the <code>http://www.basex.org/ft</code> namespace.