512,513,514 import / export dpu template(s)
Merge branch 'develop' of https://github.com/UnifiedViews/Core into feature/469_export_import_dpu_template

Conflicts:
	frontend/src/main/java/cz/cuni/mff/xrg/odcs/frontend/gui/components/DPUCreate.java
469 after merge fix, null checks for setting descr and raw conf
469 change of name  for export xml file
Merge branch 'feature/469_export_import_dpu_template' into develop

Conflicts:
	plugin_devenv