Lucene index / always use analyzer

[fxp]

Add a LowerCaseKeywordAnalyzer class to index keywords as lowercase to allow case insensitive searches, but seem adding

<Field name="keyword" analyzer="org.fao.geonet.kernel.search.LowerCaseKeywordAnalyzer"/>

to config-lucene.xml doesn't work at all.

In LQB addRequiredTextField method this code seem preventing the analyzer to be executed as keyword is not (and should not) defined in tokenizedFieldSet, so for non tokenized fields seem the value is not analyzed? (else condition calls textFieldToken that calls analyzer properly):

if (!_tokenizedFieldSet.contains(luceneIndexField)) {
	// TODO : use similarity when needed
	TermQuery termQuery = new TermQuery(new Term(luceneIndexField, searchParam));
	BooleanClause clause = new BooleanClause(termQuery, occur);
	query.add(clause);
}
else {
	// tokenize searchParam only if tokenized when indexing
	StringTokenizer st = new StringTokenizer(searchParam, STRING_TOKENIZER_DELIMITER);

Analyzers should be used in all cases (tokenized or not).