Update to 2018_v4 image and new build system. (#598)

* Revert "Force OpenCV to 3.1.0 (#602)"

This reverts commit 50ed55e8e2.

* Removes Simulation

* Removes old build system

* Removes old gtest

* Adds new gmock and gtest

* Updates to new ni-libraries

* removes MyRobot (to be replaced)

* moves files to new location

* Adds new sim backend and new test executables

* updates .styleguide and .gitignore

* Changes cpp WPILibVersion to a function

MSVC throws an AV with the old version.

* Disables USBCamera on all systems except for linux

* 2018 NI Libraries

* New build system

wpilibc/src/main/native/cpp/Talon.cpp

@@ -0,0 +1,42 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008-2017. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "Talon.h"
+
+#include "HAL/HAL.h"
+#include "LiveWindow/LiveWindow.h"
+
+using namespace frc;
+
+/**
+ * Constructor for a Talon (original or Talon SR).
+ *
+ * @param channel The PWM channel number that the Talon is attached to. 0-9 are
+ *                on-board, 10-19 are on the MXP port
+ */
+Talon::Talon(int channel) : PWMSpeedController(channel) {
+  /* Note that the Talon uses the following bounds for PWM values. These values
+   * should work reasonably well for most controllers, but if users experience
+   * issues such as asymmetric behavior around the deadband or inability to
+   * saturate the controller in either direction, calibration is recommended.
+   * The calibration procedure can be found in the Talon User Manual available
+   * from CTRE.
+   *
+   *   2.037ms = full "forward"
+   *   1.539ms = the "high end" of the deadband range
+   *   1.513ms = center of the deadband range (off)
+   *   1.487ms = the "low end" of the deadband range
+   *   0.989ms = full "reverse"
+   */
+  SetBounds(2.037, 1.539, 1.513, 1.487, .989);
+  SetPeriodMultiplier(kPeriodMultiplier_1X);
+  SetSpeed(0.0);
+  SetZeroLatch();
+
+  HAL_Report(HALUsageReporting::kResourceType_Talon, GetChannel());
+  LiveWindow::GetInstance()->AddActuator("Talon", GetChannel(), this);
+}