Bump version to 2.6-cloudtm-SNAPSHOT
Shutdown didn't set initialized to false

It was preventing the Fenix Framework to be shutdown and initialized multiple times.
Bugfix: the decode didn't check the string length while parsing

An Exception was thrown while tried to decode the locality hints + the field name (key format is class@uuid@hints:field)
Don't force the LocalityHints to have the KeyFeatureManager

The LocalityHints is used in Grouping and it is independent of auto-placer's KeyFeatureManager.
Multiple improvements in Infinispan Backend.

* Support to Grouping API by injecting Fenix Framework Grouper.
* Support to creation of InifinispanConfig instead of parsing the properties file.
* Support to set the Infinispan configuration programatically without infinispan configuration file.
* Initialize the LocalityHints with the KeyFeatureManager if auto-placer + Machine Learner is enabled.
* Added test cases for Grouping.
Improve write operations.

Decorate a cache for write that ignores the return value of Object put(key,value).
In distributed mode it reduces the write costs by skiping possible remote gets.
Merge pull request #146 from pruivo/grouping_and_autoplacer

Improvements/new implementation for Cloud-TM branch
Prepare release 2.6-cloudtm
Merge branch 'release/2.6-cloudtm' into cloudtm/master

Conflicts:
	adt-bplustree/pom.xml
	adt-linkedlist/pom.xml
	adt-skiplist/pom.xml
	archetypes/application-archetype-clean/pom.xml
	archetypes/module-archetype-clean/pom.xml
	archetypes/parent/pom.xml
	archetypes/pom.xml
	archetypes/webapp-archetype-clean/pom.xml
	backend-fenixjvstm/pom.xml
	backend-infinispan/pom.xml
	backend-jvstm-mem/pom.xml
	backend-mem/pom.xml
	backend-ogm/pom.xml
	bundle/pom.xml
	cloudtm-locality-hints/pom.xml
	core/pom.xml
	data-access-patterns/pom.xml
	dml-compiler/pom.xml
	dml-maven-plugin/pom.xml
	hibernate-search/pom.xml
	indexes/pom.xml
	parent/pom.xml
	pom.xml
	project/pom.xml
	test/pom.xml
	test/test-backend-ogm/pom.xml
	test/test-collections/pom.xml
	test/test-hibernate-search/pom.xml
	test/test-indexes/pom.xml
	test/test-locality-hints/pom.xml
	test/test-txintrospector/pom.xml
	txintrospector/pom.xml