activated legacy format for geometry data in debug mode
Merge branch 'master' of https://github.com/ufz/ogs

Conflicts:
	Gui/DataView/GeoTreeView.cpp
	Gui/mainwindow.cpp
basic implementation of num-file-reader
changed console output to logog commands
the forgotten ouput
changed string output to char array
Merge pull request #432 from rinkk/XmlNumReader

XML numeric file reader