Renamed folders for consistency, using sim/athena/shared schema (#27)

Rename the following folders:
hal/lib/Athena -> hal/lib/athena
hal/lib/Desktop -> hal/lib/sim
hal/lib/Shared -> hal/lib/shared
wpilibc/Athena -> wpilibc/athena
wpilibc/simulation -> wpilibc/sim

Windows users may need to run gradlew clean after updating.

wpilibc/athena/src/Talon.cpp

@@ -0,0 +1,39 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008-2016. 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 "LiveWindow/LiveWindow.h"
+
+/**
+ * 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(uint32_t 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);
+  SetRaw(m_centerPwm);
+  SetZeroLatch();
+
+  HALReport(HALUsageReporting::kResourceType_Talon, GetChannel());
+  LiveWindow::GetInstance()->AddActuator("Talon", GetChannel(), this);
+}