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/pneumatic_piston/src/pneumatic_piston.cpp

@@ -1,3 +1,9 @@
+#ifdef _WIN32
+  // Ensure that Winsock2.h is included before Windows.h, which can get
+  // pulled in by anybody (e.g., Boost).
+  #include <Winsock2.h>
+#endif
+
 #include "pneumatic_piston.h"
 
 #include <gazebo/physics/physics.hh>
@@ -28,7 +34,7 @@ void PneumaticPiston::Load(physics::ModelPtr model, sdf::ElementPtr sdf) {
     forward_force = -forward_force;
     reverse_force = -reverse_force;
   }
-  
+
   gzmsg << "Initializing piston: " << topic << " joint=" << joint->GetName()
         << " forward_force=" << forward_force
         << " reverse_force=" << reverse_force<< std::endl;

simulation/frc_gazebo_plugins/pneumatic_piston/src/pneumatic_piston.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include <gazebo/gazebo.hh>
+#include "simulation/gz_msgs/msgs.h"
 
-#include "msgs/msgs.h"
+#include <gazebo/gazebo.hh>
 
 using namespace gazebo;
 
@@ -41,13 +41,13 @@ using namespace gazebo;
  * \todo Signal should probably be made a tri-state message.
  */
 class PneumaticPiston: public ModelPlugin {
-public: 
+public:
   PneumaticPiston();
   ~PneumaticPiston();
-  
+
   /// \brief Load the pneumatic piston and configures it according to the sdf.
   void Load(physics::ModelPtr model, sdf::ElementPtr sdf);
-  
+
   /// \brief Updat the force the piston applies on the joint.
   void Update(const common::UpdateInfo &info);
 
@@ -57,7 +57,7 @@ private:
 
   /// \brief The signal is one of: {-1,0,1}.
   double signal;
-  
+
   /// \brief The magic force multipliers for each direction.
   double forward_force, reverse_force;
 
@@ -67,8 +67,8 @@ private:
   /// \brief Callback for receiving msgs and updating the torque.
   void Callback(const msgs::ConstFloat64Ptr &msg);
 
-  
-  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 sub;    ///< \brief Subscriber handle.