[FIX] AUC calculation of distances for document nodes (on-the-fly)
[FIX] Finding namespace nodes for given pre value. #1031
[MIN] XQueryUpdate, #1041: add query info if files are not written back
Merge pull request #1040 from LukasK/issue1031

Issue1031
[MOD] Storage, XQuery Update: new AUTOOPTIMIZE flag. Closes #1035.
      http://docs.basex.org/wiki/Options#AUTOOPTIMIZE
[MIN] Merged