Lucenemodule 1.8.0 released

Lucenemodule 1.8.0 is basically a MMBase 1.8.0 compatible version since MMBase 1.8 is NOT backwards compatible in some area's.

PLEASE NOTE THIS VERSION IS NOT COMPATIBLE WITH MMBASE RELEASES PRIOR TO THE 1.8 RELEASE, USE LUCENEMODULE 1.7.9 FOR ALL MMBASE VERSIONS BELOW 1.8

MMBase 1.8 specific features are added this lucenemodule release like:
-Changed configuration reading
-Support for the NodeEventListener mechanism
-added HugeNodeListIterator for more efficient memory handling