this should be all you need to fix the travel icons
another possibiility
Merge branch 'cgdevelop' into 215-icons-missing
Use asset pipeline
Merge remote-tracking branch 'origin/cgdevelop' into 215-icons-missing
Everything goes in assets
Fix bus icons
fix icons
Merge remote-tracking branch 'origin/cgdevelop' into 215-icons-missing
Merge pull request #106 from CG-CamSys/215-icons-missing

this should be all you need to fix the travel icons