Added service layer in Server:
 - DataProvider uses services now (but services not implemented yet)
 - added service layer data models, not implemented yet
 - fixed some mistakes in wsdl files
 - ids changed from int type to long type in Server and Commons
Simple implementation of DirectDataAccessService
Merge remote-tracking branch 'remotes/origin/master' into server-impl
Type of identifiers changed to long/java.lang.Long in client ( #18 )
Added exception dialog on unsuccessfull connecting to webservices
Entity/Relation color is no longer hardcoded in css, but dynamically created from hashed id
Minor refactoring, formatting, added missing javadoc
Minor tweaks
Added exceptions in DirectDataAccessService
Added an application level exception handling
Added NamedEntityRecognizerService
Added ObjectAssignmentService, which simulate the TextPro with direct access to database.
Merge remote-tracking branch 'remotes/origin/client'

Conflicts:
	Client/src/main/java/cz/cuni/mff/ufal/textan/core/Object.java
	Client/src/main/java/cz/cuni/mff/ufal/textan/core/graph/Grapher.java
	Client/src/main/java/cz/cuni/mff/ufal/textan/gui/graph/GraphView.java
	Client/src/main/java/cz/cuni/mff/ufal/textan/gui/graph/ObjectListController.java
	Client/src/main/java/cz/cuni/mff/ufal/textan/gui/reportwizard/ReportRelationsController.java
	Server/src/main/java/cz/cuni/mff/ufal/textan/server/ws/MockDB.java