Add ARC
Implement hierarchy wizard
Bugfix: correctly update views
Follow factory pattern for creating hierarchy builders
Provide build() method
Implement hierarchy wizard
Enforce use of appropriate parent-shell for dialogs
Implement hierarchy wizard
Integrate hierarchy wizard
Merge branch 'master' into feat/jdbc

On top of a simple merge it updates JdbcPage so it works with current 'master'.
Code formatting
Cleanups
src: gui: wizard: importdata: Remove reference to actionShowOpenFileDialog()
src: gui: wizard: importdata: JdbcPage: Set texts by default
Cleanups and formatting
src: gui: wizard: importdata: JdbcPage: Use constants as texts
src: gui: wizard: importdata: TablePage: Use setMaxRows()
Bugfixs: more consistently use error vs. info dialogs
Bugfix: fix bug when loading/saving non-existent hierarchies
Bugfix: handle window.close()