Close the scanner
Use public interface for the digest. Reasons:
- easier interchangability
- safe for developers (only see the functionality they should)
Improve ConsoleClient and add the digest request
ProcessTreeNode slightly improved (no change in functionality)
Clearification of the getDigest: Only files and not folders
Fix recursive addition: consider parent modifications
Do not use a tree for add/modify a file tree

causes version conflicts --> use simple list instead (refactoring
follows)
Started refactoring for Processes launched in the FileRecursionUtil
Merge branch 'file-observer'

Conflicts:
	org.hive2hive.client/src/org/hive2hive/client/menu/TopLevelMenu.java
Delete .project
moved file observer to core project
Use process chain for file syncing
Some small fixes around files
Remame digest to fileList
Add RecoverFile to the Node interface
encryption key management and documentation
Merge branch 'encryption-key-mgt'
H2HFileWatcherTest
file created event order tested