added a function to save the template image to a file, added parameters
to constructor to determine tape width and sticker paper type (ie.
size), added a function to set template attributes depending on the
constructor's parameters (replaced a few functions which have been
removed)
minor adjustments
added two function stubs for functions that will eventually add
barcode(s) to the template
moved old template image files to new folder "obsolete" since they can
now be made using code
cleaned up code
trying out different approaches to setting the barcode's coordinates on
the template
minor adjustments (added author, etc.)
implemented function to draw barcode on template at appropriate
coordinates (still need to test it)
trying to make a template with a few barcodes
cleaned up code