Initial branch commit for adaption of version keys.
New TomP2P version adapted plus refactored put validation.
Refactoring of the put verification on client side.
put, get and remove steps refactored
Forgotten stuff
storage memory test. Not working because of bug in TomP2P.
Tests adapted to new put, get, remove methods.
Quick fix in test
Some further corrections.
Merge branch 'version_keys'

Conflicts:
	org.hive2hive.core/src/org/hive2hive/core/network/H2HStorageMemory.java
	org.hive2hive.core/src/org/hive2hive/core/process/common/get/GetUserProfileStep.java
	org.hive2hive.core/src/org/hive2hive/core/process/common/put/PutProcessStep.java
	org.hive2hive.core/src/org/hive2hive/core/process/common/remove/RemoveProcessStep.java