Get lines better showing, fix bug in changing route

Summary:
Show the lines stops in deeper blue
Fix bug when changing line while maintaing perfect resuming (try returning to the lines screen!)
Better handling of string conversion, such as "D'" and points

Test Plan: Check if builds

Reviewers: valerio.bozzolan

Reviewed By: valerio.bozzolan

Subscribers: valerio.bozzolan, Libre BusTO

Tags: Libre BusTO

Differential Revision: https://gitpull.it/D84