various changes to support Spanish/English dual language content for many
of our pages
Added code to enable Spanish/English language switching.
Removed working graphics files...
Removed FB and Blogspot icons from non-SMP footer. Changed parts lists to
move the stock number column to 3rd position.
Removed si-test tree (backed up locally).  More parts column changes.
Parts list column order changed.
Added Peter Duhlebon's contact info to
contact-crusher-wear-parts-western.php and some other contact changes.