ISPN-4961 Bump parsers and schemas to 7.1

- Altered org.infinispan.Version to retrieve the version using
maven-injection-plugin
- Improved SampleConfigFilesCorrectnessTest so that it accepts only
files with the latest schema
- Altered the documentation so that the version is dynamically replaced
- The Soft-Index File Store schema namespace was missing the "store" path
element. Added it for symmetry with all other store schemas.
ISPN-4631 Make sure test servers are shut down after tests
ISPN-5023 Random Failues on *FactoryBeanTest in the Spring Modules
ISPN-4444 After state transfer, a node is able to read keys it no longer owns from its data container

* mark the keys stored as L1
* this avoid read the keys that are going to be invalidated during the ST