merged from frcsim branch

verified to work on real robots
adds sim eclipse plugins, fixed JavaGazebo, made wpilibC++Sim build on windows
 - Java and C++ simulation robot programs run on windows
 - simulation eclipse plugin delivers models and gazebo plugins
 - Java Gazebo now respects GAZEBO_IP variables and can work across networks
 - hal and network tables win32 hacked to work on windows
 - smart dashboard broken on windows due to network tables hacks
 - wpilibC++Sim, gz_msgs, and frcsim_gazebo_plugins build with CMake
 - removed constexpr for cross platform compatibility
 - msgs generated using .protos as a part of build process
 - some spare and unused cmake/pom files deleted
 - simulation ubuntu debians removed entirely
 - refactored CMake project flags and macros
 - updated to match non-sim C++ API
 - fixed and updated documentation
 - servo added to simulation

Change-Id: Ia702ff0f1fee10d77f543810ad88f56696443b05

simulation/frc_gazebo_plugins/encoder/src/encoder.h

@@ -1,8 +1,11 @@
 #pragma once
 
+#include "simulation/gz_msgs/msgs.h"
+
+#include <gazebo/physics/physics.hh>
+#include <gazebo/transport/transport.hh>
 #include <gazebo/gazebo.hh>
 
-#include "msgs/msgs.h"
 
 using namespace gazebo;
 
@@ -33,13 +36,13 @@ using namespace gazebo;
  * - `units`: Optional. Defaults to radians.
  */
 class Encoder: public ModelPlugin {
-public: 
+public:
   Encoder();
   ~Encoder();
-  
+
   /// \brief Load the encoder and configures it according to the sdf.
   void Load(physics::ModelPtr model, sdf::ElementPtr sdf);
-  
+
   /// \brief Sends out the encoder reading each timestep.
   void Update(const common::UpdateInfo &info);
 
@@ -49,13 +52,13 @@ private:
 
   /// \brief Whether or not this encoder measures radians or degrees.
   bool radians;
-  
+
   /// \brief Whether or not the encoder has been stopped.
   bool stopped;
-  
+
   /// \brief The zero value of the encoder.
   double zero;
-  
+
   /// \brief The value the encoder stopped counting at
   double stop_value;
 
@@ -68,12 +71,12 @@ private:
   /// \brief Gets the current angle, taking into account whether to
   ///        return radians or degrees.
   double GetAngle();
-  
+
   /// \brief Gets the current velocity, taking into account whether to
   ///        return radians/second or degrees/second.
   double GetVelocity();
 
-  physics::ModelPtr model;                  ///< \brief The model that this is attached to. 
+  physics::ModelPtr model;                  ///< \brief The model that this is attached to.
   event::ConnectionPtr updateConn;          ///< \brief Pointer to the world update function.
   transport::NodePtr node;                  ///< \brief The node we're advertising on.
   transport::SubscriberPtr command_sub;     ///< \brief Subscriber handle.