Added global version to DocumentTableDAO
sample_data.sql working

fixed #67
plus clean script to delete all rows in all tables
Graph object related to itself fix

Described in TextAn/Documentation/MoM/2014-07-29.txt
Merge remote-tracking branch 'origin/db-hibernate2' into server-impl

Conflicts:
	Data/src/main/java/cz/cuni/mff/ufal/textan/data/repositories/dao/IDocumentTableDAO.java
Added throwings of document changed exception
Added rewriteAndSaveProcessedDocumentById  operation into DocumentProcessor (with implementation)
Merge remote-tracking branch 'remotes/origin/server-impl' into client
Client now uses ReqriteAndSaveProcessedDocumentById
Hopefully fixed the problem with TextFlow and maximalization of the main window
Relation types in context menu of Relation Edit Window should now never be italic.