More accurate comment for param.
Skeleton for testing purposes.
Refactoring OPF templates.
Removing redundant global variable for nav.in.ncx, which is controlled by param.
Fixed bug in handing of OPF manifest images that resulted in multiple manifest <item>s for the same image file if it was referenced in multiple <img> @src attrs.
Some cleanup for less tolerant XSLT processors.
Merge pull request #103 from oreillymedia/opf

Fixed bug with OPF image <item> generation