Added new package "command_uav" to test commanding gazebo's uav
--> updated gitignore
--> Somethig happend with .dae opener pluging, so changed the model of the floor from .dae to .stl
Merge branch 'master' into command_package

Conflicts:
	.gitignore
--> Added source to command_uav
--> Added launch config to command_uav
--> Configured CMakeLists of command_uav
--> Erased lines about joystick in the command_uav_node source

TODO:
--> solve TODOs in command_uav_node source
--> Filling command_uav_node.cpp
--> Modified command_uav_node.cpp
--> Compiled command_uav package
--> Erased duplicated line un CMakeLists.txt
--> Added file to gitignore
--> Fixed error in main repo makefile
--> The node is running and communicating with the gazebo's uav
--> Differenciate parts of command_uav.cpp code
--> Test a position

TODO:
--> GetImageSource
--> Created an intance of subscriber to the image_raw of the gazebo's camera
--> Added line to make ros to print into console with cout and others
--> Checked that i'm receiving images from source
--> Trying to get image info in command_uav_node but fails compilation... Search for the right method
--> Add function to makefile to build individual packages

make build_package PACKAGE=[package name]
--> Discovered where the data is stored in gazebo's images: sensor_msgs::Image::Data (is a std::vector<uint8_t>)
--> Created bash file with a function to be used in makefile
--> Image form gazebo to opencv.

TODO:
--> Integrate BOViL
--> Removed auto-generated files from repo
modified CMakeList to include BOViL
--> Modifing CMakeList to include BOViL but cant find out a solution