Version 2.3

Version	2.3.0
Release Date	2020-01-02
Author	Albert Ball
Changelog	Adds option to load railways and sessions with signals on the right hand side, common to non-UK routes. Addition of 1/8th and 1/16th clock speeds. Fixes display of track and trains behind 'Actions Due' panel. Updates to help and manual files. Improvements to text and graphics handling functions for more efficiency memory usage.

Version	2.3.1
Release Date	2020-02-05
Author	Albert Ball
Changelog	Adds underpasses to routes. Improvements to warning messages. Fix to bug where program crashed if large numbers entered into timetable repeat values.