tagWrapperCommand setting moved

Needs to be in the section updated by settings.php, ended up with
duplicate array settings
Minor tweaks only re tag wrappers

No need to hardcode setting in the main ICEcoder object
Moved function param for tagWrapperCommand placement
Minor syntax tweaks for consistency
Also removed now old comment
Lowercase like other settings
Moved the placement of tagWrapperCommand

To fit in with placement on settings screen and match settings file