updated recipe code to match 2.3.2 and be more flexible about passed url structures (extensions and subfolders)
updated recipe code to match 2.3.2 and be more flexible about passed url structures (extensions and subfolders)

git-svn-id: 7cc12f2276217ae354b42b64c2860900cd925c42@80218 467b73ca-7a2a-4603-9d3b-597d59a354a9

chillu/silverstripe-book,chillu/silverstripe-book,chillu/silverstripe-book,chillu/silverstripe-book