[changed] removed unused code
[changed] refactored usage of IF-MAP constants
[fixed] added missing license information
[changed] added missing comment
[added] generation of detailed information on Metadata and Identifier can now be adjusted by subclasses of a new strategy class
[added] information about nodes is now shown when clicking on them; selection can be withdrawn by clicking in the background; when nothing is selected, information will be shown for every object the mouse cursor hovers over
[added] if a node is selected, it is colored in a special color
[fixed] bug/unwanted behavior when de-selecting a node or dragging a node
[changed] replaced String comparison for node type distinction with new enumeration class
[fixed] initialization of the connection works properly now.
[fixed] history can now be viewed even if the graph was empty at the
start.
[fixed] behaviour for display of extended identifier when type is 'other'
fixes update bug on dataservice side for singleValue Metadata

Uses regular .equals Method for Metadata identification in delta calculation by using new removeMetadata(...) Method which uses a boolean for distinction.
[removed] flawed clone method and copy constructor in InMemoryLink
[added] initial import of Metalyzer code from common-package
[added] initial import of Metalyzer code from visualization-package
[added] initial import of Metalyzer code from visitmeta-distribution-package
[added] initial import of Metalyzer code from root-package
[added] initial import of Metalyzer code from metalyzer-package
[added] initial import of Metalyzer code from dataservice-package
[changed] added license information to new classes in common-package
[fixed] removed compile errors in dataservice
[fixed] adapted cipher calls to Neo4j 2.x syntax