remove unecessary diego-edge-cli targeting that is no longer needed for the whetstone tests

Signed-off-by: David Wadden <dwadden@pivotal.io>
Adjusts CLI commands to remove loggregatorAddress and receptorAddress specifications, both of which are no longer necessary

Signed-off-by: Chelsea Troy <ctroy@pivotal.io>
Signed-off-by: Matthew McNew <mmcnew@pivotal.io>
Clean up install script output.

  + Install script now logs to /var/log/diego-install.log instead of stderr/stdout
Fail fast if vtx is not enabled on linux

Signed-off-by: Matthew McNew <mmcnew@pivotal.io>
Bump Version: 4 -> 5