* libxslt/documents.c libxslt/keys.c libxslt/xsltInternals.h
libxslt/transform.c libxslt/pattern.c: fix the key initialization
problem introduced when tracking Josef Urban problem from 22 Dec
2007, this should also handle the problem of recursive keys
definitions should fix#531873.
* tests/docs/bug-166.xml tests/docs/Makefile.am
tests/general/Makefile.am tests/general/bug-166.xsl
tests/general/bug-166.out: add the regression tests when a key
computation depends on another one.
Daniel
svn path=/trunk/; revision=1471
