fix: initial-page-number started with page number 1 at each page sequence
added: initial-page-number now completely implemented
(author: Jordan Naftolin)


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/release-0-13-0@193381 13f79535-47bb-0310-9956-ffa450edef68