WIP Jpa and Jdbc repos
Rename packages and move classes to be consistent between spi and core
Refactor jsl to allow easy extension
Simplify fluent jsl api
Add some tests and javadoc for ExecutionRepository
Don't hold reference to execution in ExecutionContext
Call collectPartitionData after closing reader and writer
Add JNDI injector
Add guice injector
Clean up cdi injector and seam injector pom
Jpa repo passes TCK