Bugfix for reversal signal replacing

Improved cost display

1.11
- Fix of dead loop of backward removing
- Added cost calculates (credit to phobos2077)

Bugfix for backward removing

Patch for new beta version

1.10
- Fix crash bug on track connected to depot
- Add signal removal function
- Add signal replacing function

Translations bugfix

Fix for setting up signals on the first edge to a station

1.9
- Intergration of AutoSig with into the construction menu
- Live with auto paralell tracks mod.

1.8
- Bugfix for signals created into construction.