Fixed issue on loading/applying saved layouts
Extracted reusable code snippet from SearchConnectorsAction into new
class CommandUtil
Added 'build next tier' action to 'build supply chain' menu
Externalized new strings in 'build supply chain' menu
Merge remote-tracking branch 'gitlab/master'
- Build supply chain/next tier menu redesigned
- Fixed remove supply chain action
- Refactored build next tier action to use own command instead of
chained command -> better support for redo and undo
Fixed problems with sankey options (cutoff)
added null-check in text-drop-component
Merge remote-tracking branch 'origin/master'

Conflicts:
	olca-app/src/org/openlca/app/editors/graphical/action/BuildNextTierAction.java
	olca-app/src/org/openlca/app/editors/graphical/command/CommandUtil.java