+ Fundamental changes in FolderWatchService
	> File path as key, not content hash
	> additional blocking queue, storing pending delete events
	> on create, check if a delete action with same content hash is
pending, trigger move, remove corresponding delete from the delete queue
and the standard action queue
	> if a delete item is removed from the action queue by the worker
thread, it is removed as well from the delete queue to provide
consistency

+ Changes in Action
	> new Path instance variable instead of file, as File objects are not
defined for directories and actions need to handle directory events as
well
	> function to create a correct string representation of the content
hash (has to be replaced to a better place later)
	
+ Fixed nasty bug concerning content hashes (byte[].toString leads to a
unique object identifier of each byte[], no matter if the array content
is equal!)
Merge branch 'master' of https://github.com/Hive2Hive/PeerBox.git

Conflicts:
	peerbox/src/main/java/org/peerbox/watchservice/ModifyState.java
+ Delete of old comments/sysos