Automatic merge of T1.5.1-870-ge0bf062eb and 18 pull requests

- Pull request #570 at 3539862: Experimental glTF 2.0 support with PBR lighting
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #876 at f92de76: docs: add source for documents previously on website to source Documentation folder
- Pull request #882 at 9c456aa: Blueprint/train car operations UI window
- Pull request #885 at 8f94333: feat: Add notifications to Menu
- Pull request #886 at 6c0785b: Scene viewer extension to TrackViewer
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #896 at 5866028: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #897 at 42f1dd9: feat: Improved system information collection
- Pull request #903 at 0d6d045: Downloading route content (Github, zip)
- Pull request #907 at 9b0b04f: Bug fix for https://bugs.launchpad.net/or/+bug/2047300 Dynamic tracks disappear after long tunnel
- Pull request #911 at 6834af0: docs: Add refactoring as a special type of PR
- Pull request #912 at 659396e: New Triple Valve Features Vol. 2
- Pull request #914 at 29245e1: Adjustments to Duplex steam
- Pull request #915 at 6d911d7: Correct calculation error with curve friction
- Pull request #916 at 11ac52c: Distributed Power Air Brake Synchronization
- Pull request #917 at fde18cf: Lighting Configuration Enhancements
- Pull request #918 at f7ba507: Manual - News topics updated since 1.5.1

Author: openrails-bot

Source/Documentation/Manual/news.rst

@@ -5,42 +5,42 @@ New since previous version of Open Rails
 ****************************************
 
 A summary of the new and improved features can be found below. 
-In addition, over 170 bugs have been fixed in this release. 
+In addition, a number of minor bugs have been fixed in this release. 
 
 Please keep `reporting bugs and suggesting new features <http://openrails.org/contribute/reporting-bugs/>`_ 
 so Open Rails can continue to improve.
 
 
-Headlines
----------
-
-- Container Loading and Unloading
-
-
 What's been added
 -----------------
 
-- End Of Train (EOT) devices
-- Distributed Power display, in-cab and on webpage
-- Progress bar for timetable "pre-run"
-- HUD extended for diesel-mechanical loco
-
+- detailed map which tracks player train
+- partial turntables
+- cab controls operated remotely from a tablet or control desk
+- animations for cab windows
+- options to configure RailDriver
+- more accurate wheelslip using Polach adhesion
+- duplex and booster steam engines (e.g. T1 class) 
+- cloud-free skies
+- more air and dynamic brake options for locos
+- mouse control for scripted brake controllers
 
 
 What's been improved
 --------------------
 
-- 64-bit compatibility lifting the 3GB RAM limit
-- Better use of VRAM
+- sky, sunrise and sunset appearance
+- wheelslip, exhaust and steam
+- layout of map window
+- F9 menu for controlling cars and brakes
+- controls for electric locos
+- air brake features for both European and American brake systems 
+- accurate friction simulation for 4 types of brake shoes
 
 
 
 Other changes
 --------------------
 
-- F5 key now opens Driver Info window. For HUD, use Alt+F5
-- Some trial options are now always active including:
-
-  - map window (Ctrl+9)
-  - de-brief evaluation (F1)
-  - web server
+- distracting “z-fighting” has been minimised
+- inactive windows are indicated when several windows are open