more reliable calculation of baseUrl for persistence jars
Merge pull request #61 from dzwicker/master

#59 Unsupported protocol for META-INF/orm.xml url in TomEE
Changes to PartialBean.
Custom prefix for method expressions.
Adapt native SQL query handling.
Applying new @EntityManagerConfig annotation for multi-EM lookup.
Fixed URL lookup mainly for TomEE
JavaDoc updates.