Ok for Select queries from simple Equals Linkkeys + Relation Intersects Linkkeys. Have todo on Relation Equals Linkkeys

First version for SPARQLSelectRendererVisitor : only works with no linkkeys or with intersect simple linkkeys (have to complete with Equals linkkeys and composite linkkeys) 

- upgraded to OntoSim 2.6
- release 4.6

	- methods Relation::compose (for EquivRelation, Subsum..Relation, and IncompatRelation)
	- methods Cell::compose

new implementation of Alignment::compose -> Now it works

- havinf GroupAlign and ProcAlign working