Bugfix Release - Logic Errors

• Print Order. Would not print ordhead or orditem notes if requested
• Spares Credit : print instrument list instead of hard coded words 'cash refund'
• Spares Credit : print logo if logo is set
• Spares Credit : send to email selection at point of sale did not work
• Point of sale : fixed bug where you could change invoice type and click on continue but checks and balances for changing invoice type would not be performed (i.e. setting/clearing deposit amount etc)
• Point of sale : type in a part number that occurs multiple times: make sure supercession chains are followed for all matching parts before displaying the select list. So correct part,header,price,loc and QoH is displayed