SES-1818 Use replaceWith(newVar.clone()) instead of setName(newName)
Move test to ComplexSPARQLQueryTest.java
SES-1818 added execution of complex SPARQL tests to store-compliance for
sesame native store.
Merge 2.7.x
Merged in SES-1818 (pull request #127)

SES-1818 Use replaceWith(newVar.clone()) instead of setName(newName)