Revert Chef Server version back to 11.0.4-1 and knife command reorder

A pull request was applied last week updating the Chef Server version downloaded to 11.0.8-1. This new version of Chef Server introduces additional parameters that the script does not account for thus breaking installation. I recommend reverting back to the tried and true 11.0.4-1 version until further testing can be done against 11.0.8-1.

Also changing the order of two knife commands to match the corresponding documentation.