Merge pull request #10 from hexanom/roadmap

Beautify Roadmap
Fix UI constraints
Emphize deliveries
Timewindow detail
More explicit lists
Activate add/del buttons only when needed !
Command-pattern ready for add/del
Enable undo/redo when needed !
Togglable section/location names
Implementation of getDeliveryLocationBefore and getDeliveryLocationAfter
AddDeliveryAction implementation
Merge with master