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

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/src/main/resources/cpp-zip/ant/build.properties

@@ -14,3 +14,9 @@ roboRIOAllowedImages=23
 wpilib.ant.dir=${wpilib}/ant
 jsch.jar=${wpilib.ant.dir}/jsch-0.1.50.jar
 classloadertask.jar=${wpilib.ant.dir}/ant-classloadertask.jar
+
+#simulation stuff
+sim.exe=Simulate/${out}
+wpilib.sim=${wpilib}/sim
+sim.tools=${wpilib.sim}/tools
+sim.lib=${wpilib.sim}/lib

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/src/main/resources/cpp-zip/ant/build.xml

@@ -104,17 +104,15 @@
   <target name="simulate">
     <parallel>
       <sequential>
-	    <echo>[simulate] Running Gazebo.</echo>
-	    <exec executable="frcsim">
-	      <arg value="${simulation.world.file}"/>
-	    </exec>
+        <!-- windows uses a batch file to run frcsim, linux uses a shell script -->
+	      <condition property="frcsim.executable" value="frcsim.bat" else="frcsim">
+          <os family="windows" />
+        </condition>
+        <!-- TODO: launch gazebo once? -->
+        <echo>[simulate] You may now run Gazebo</echo>
       </sequential>
       <sequential>
-        <sleep seconds="5"/>
-	    <echo>[simulate] Running DriverStation.</echo>
-	    <java jar="${sim.tools}/SimDS.jar" fork="true">
-          <jvmarg value="-Djava.library.path=${sim.lib}" />
-        </java>
+	      <echo>[simulate] You can now run your DriverStation!</echo>
       </sequential>
       <sequential>
         <sleep seconds="5"/>