DocumentTableDAO.findAllProcessedDocuments(bool)

returns all processed or unprocessed documents
Added a number of occurrences into GetDocumentsContainingObjectByIdResponse
DB schema change preparation
Merge remote-tracking branch 'origin/db-hibernate2' into db-hibernate2

Conflicts:
	Data/src/main/java/cz/cuni/mff/ufal/textan/data/repositories/dao/DocumentTableDAO.java
	Data/src/main/java/cz/cuni/mff/ufal/textan/data/repositories/dao/IDocumentTableDAO.java
	Data/src/main/java/cz/cuni/mff/ufal/textan/data/tables/ObjectTable.java
	Data/src/main/resources/mappings/ObjectTable.hbm.xml