.gitignore results of build operation and added launch file

.gitignore

@@ -12,4 +12,15 @@
 *.a
 /nbproject/private/
 Makefile
-/build/CMakeFiles/
+/build/CMakeFiles/
+
+# Build results
+/ARDroneLib/FFMPEG/Includes
+/ARDroneLib/FFMPEG/FFMPEG
+/ARDroneLib/Soft/Build/
+/ARDroneLib/Soft/Common/generated_custom.h
+/bin
+/build/
+/msg_gen
+/srv_gen
+/src/ardrone_autonomy