Changed SimulatedDevice to be loaded as a plugin through pluginlib.
Chnaged SimDev_Echo accordingly.
Changes for compatibility with Fuerte.
Changes to enable physics in possible Simulated Devices.
Fixed pure virtual destruction being called.
Merge pull request #12 from tut-yury/sim_dev_plugin

Changed SimulatedDevice to be loaded as a plugin through pluginlib.
Create README.md
Update README.md
Update README.md