New Feature: Added the new API for TransactionManager and Transaction.
Updated backend-mem to support the new Tx API.
New Feature: Add support for the new Tx Interfaces in the Infinispan Backend
Merge branch 'big-refactoring-2012' into 'big-refactoring-tx-api-merge'
Hibernate Search now uses the new TxManager and TxIntrospector API
Adapted BooksTest to use the new TxIntrospector API
New Feature: Added utility 'Transaction' class that delegates to an underlying JTA Transaction.
New Feature: Add support for the new Tx interfaces in the OGM Backend.
Refactor: Removed duplicate code in the Infinispan Backend.
* Removed Shadow operations and Collections.
Disable TRACE on tests.  Caused to much output
* Minor changes that are not meant to make it into the develop branch.
* More small fixes not meant to make it to the dev branch.
* Mostly whitespace fixes pointed out by Ivo Anjo.
* Various fixes according to pull request review.
Merge branch 'nmld-collections-jvstm-backend-merge' into big-refactoring-2012

Refactoring of the code generation with regard to relations "to-many". It is
now possible to define which DML-designed-collection is meant to be used by
the code generation performed by the backends. The parametrization that
overrides the default of each backend may be performed in the pom.xml of the
application using the code generator configuration parameter:
`collectionClassName`.

There is also a new backend available, which provides only transactional
management and lacks persistence --- it uses the JVSTM to do so. At this point
the dependency is still towards the JVSTM used in the Fénix instantiation at
CIIST/DSI.
Rename Backend OGM tests

  * Also remove log4j verbosity from OGM tests
Check and cleanup pom files before 2.0 release
Merge remote-tracking branch 'origin/big-refactoring-tx-api-merge' into big-refactoring-2012
New Tx API fixes after merge

  * Apply proper naming conventions on AbstractTransactionManager(rename do*
    to backend*)

   * Fix JVSTMMem backend to the new Tx API (bare minimums)