Rosbridge corrections

[Carter90]

executable bit missing on rover_launch_local.sh need chmod +x ./misc/rover_launch_local.sh
and incorrect relative path in rover_launch_local to rover_onboard_node_launch should be ./misc/rover_onboard_node_launch

There were missing instructions on the readme possibly
npm is not installed on Ubuntu defaultly need to run sudo apt install npm?

in swarmie-web.js
ros : robotRos change to ros : swarmieName.robotRos,
on lines 20, 26, 32, 38, 171, 240, 265, 290, 316
remove .toUpperCase() as most hostnames are lowercase
on line 12

dicument should be document on line 377

[wfvining]

the node.js stuff is cruft. I included it in the merge by mistake and none of it actually works yet. You shouldn't need npm to use this.

rover_launch_local should be run from inside the misc dir. We should probably make it usable from anywhere, but that is another issue. If my memory serves me correctly rover_on_board_node_launch must be run from inside misc as well, but maybe that has been fixed.

[wfvining]

Corrected in latest PR #216

[Carter90]

Great, Cabrillo will take it for a spin tomorrow.

[cabrillorobotics]

No luck on our part today getting it to run properly. Documentation was not clear.