SITL: Added missing files to win_sitl and removed -j4

Tools/autotest/win_sitl/RunCopter.bat

@@ -1,4 +1,4 @@
 rem File run APM:Copter SITL
 rem Assumes a Cgywin install at C:\cygwin
 chdir C:\cygwin\bin
-bash --login -i -c "cd ./ardupilot/ArduCopter && ../Tools/autotest/sim_vehicle.py -j4"
+bash --login -i -c "cd ./ardupilot/ArduCopter && ../Tools/autotest/sim_vehicle.py"

Tools/autotest/win_sitl/RunPlane.bat

@@ -1,4 +1,4 @@
 rem File run APM:Plane SITL
 rem Assumes a Cgywin install at C:\cygwin
 chdir C:\cygwin\bin
-bash --login -i -c "cd ./ardupilot/ArduPlane && ../Tools/autotest/sim_vehicle.py -j4"
+bash --login -i -c "cd ./ardupilot/ArduPlane && ../Tools/autotest/sim_vehicle.py"

Tools/autotest/win_sitl/RunRover.bat

@@ -1,4 +1,4 @@
 rem File run APM:Rover SITL
 rem Assumes a Cgywin install at C:\cygwin
 chdir C:\cygwin\bin
-bash --login -i -c "cd ./ardupilot/APMrover2 && ../Tools/autotest/sim_vehicle.py -j4"
+bash --login -i -c "cd ./ardupilot/APMrover2 && ../Tools/autotest/sim_vehicle.py"

Tools/autotest/win_sitl/apm_install.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+#A simple script to install the APM SITL environment into cygwin
+
+python -m ensurepip --user
+python -m pip install --user future
+git clone git://github.com/ArduPilot/ardupilot.git
+git clone git://github.com/tridge/jsbsim.git
+cd jsbsim
+./autogen.sh
+make
+cp src/JSBSim.exe /usr/local/bin
+cd ../ardupilot
+git submodule update --init --recursive
+./modules/waf/waf-light configure --board=sitl

Tools/autotest/win_sitl/readme.txt

@@ -0,0 +1,43 @@
+SITL for Windows Automatic Installation Scripts
+
+This is a collection of batch files to automatically install and run APM SITL (http://ardupilot.org/dev/docs/sitl-simulator-software-in-the-loop.html) on a Windows-based PC/laptop.
+
+The scripts are based on the SITL setup instructions here: http://ardupilot.org/dev/docs/sitl-native-on-windows.html
+Prerequisites:
+
+    None! The scripts will take care of everything.
+    You will need an Internet connection and an hour of time (will be less with a fast Internet connection) for the scripts to download and install everything.
+
+Assumptions:
+
+    The scripts will install Cygwin, MAVProxy and the APM source to C:\cygwin. So access to the C:\ drive is required.
+
+Installing:
+
+    Download these scripts and unzip
+    Run the script "InstallCygwinAPM.ps1" (right click -> Run in Powershell). This will install Cygwin to C:\cygwin and MAVProxy to C:\Program Files (x86)\MAVProxy
+
+Running SITL:
+
+There are several options for running SITL. In all cases, SITL will output a mavlink stream on 127.0.0.1:14550 (UDP) for connection to any GCS software (Such as Mission Planner).
+
+An EEPROM (containing the state of the APM's flash memory - paramters, waypoints, etc) is saved for each vehicle type and (by default) will be re-loaded each time SITL is run. This can be overidden to start with a new EEPROM containing all default values.
+
+To continue with the current EEPROM, run:
+
+    RunCopter.bat for a quadcopter running APM:Copter
+    RunPlane.bat for running APM:Plane
+    RunRover.bat for running APM:Rover
+
+To delete the old EEPROM and start with all default settings, run:
+
+    ResetRunCopter.bat for a quadcopter running APM:Copter
+    ResetRunPlane.bat for running APM:Plane
+    ResetRunRover.bat for running APM:Rover
+
+Updating the APM source code
+
+To update the APM code with the latest of Github, run UpdateAPMSource.bat. Note this is bleeding-edge source code and some bugs may be present.
+Deleting the SITL environment
+
+To uninstall/delete the SITL environment, simply delete the "cygwin" folder in the C:\ drive.