Merge pull request #41 from janpolowinski/labeling_configurable_be

Labeling configurable be
[FIX] set display_label_text true as long a default text labels exist
sorting Utils classes
move misplaced old code
move to AVMUtils
test code quality improvements, move classes
reduce duplicated code in generators
distinguish default width by role of graphic object
clean up imports
move toString-method for mapping details
typos
refactor interpreter + always visa.graphic.GraphicAttribute
extract further mapping handlers
extract containment handler
further refactor mapping handlers
improve error handling, don't catch all exceptions
remove unnecessary qualified name
extra query utilities
refaktoring query builders
move sparql query builder