* fixed JSPWIKI-757 Have default file direction location be in relative directory instead of 
   hardcoded /p/dir1/dir2. If jspwiki.fileSystemProvider.pageDir in jspwiki.properties isn't
   provided, it will default to ${user.home}/jspwiki-files

git-svn-id: https://svn.apache.org/repos/asf/incubator/jspwiki/trunk@1431027 13f79535-47bb-0310-9956-ffa450edef68