epub3-nav-create-page-list.xpl: fixed error: err:XD0023:Undeclared variable in XPath expression: $base-dir
added dependencies to xml catalogs
Merge pull request #26 from daisy-consortium/epub3-nav-create-page-list-XD0023

epub3-nav-create-page-list.xpl: fixed error: err:XD0023:Undeclared variable in XPath expression: $base-dir