Some documentation about tests added.
Merge branch 'master' of https://github.com/ippes/Hive2Hive.git

Conflicts:
	org.hive2hive.core.test/src/org/hive2hive/core/test/network/messaging/BaseMessageTest.java
	org.hive2hive.core.test/src/org/hive2hive/core/test/network/messaging/BaseRequestMessageTest.java