Improve naming.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577454 13f79535-47bb-0310-9956-ffa450edef68
Add arq.classpath to svn:ignore

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577455 13f79535-47bb-0310-9956-ffa450edef68
Add ${SEP} only if CP already set

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577458 13f79535-47bb-0310-9956-ffa450edef68
Temporary fix for JENA-653 (correct results, not an ideal execution plan) : turn off the filter placement with (union).

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577895 13f79535-47bb-0310-9956-ffa450edef68
Better temporary fix for JENA-652.
If the filter expressions are completely handled by both (union) branches, 
then optimization is safe.



git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577904 13f79535-47bb-0310-9956-ffa450edef68
Const for an empty (and immutable) ExprList

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577918 13f79535-47bb-0310-9956-ffa450edef68
Proper fix for JENA-652 : consider each expression separately

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1577924 13f79535-47bb-0310-9956-ffa450edef68