…RangeQueryRewriter.rewriteLocationStep

Handle all operators

…proposal_fix_npe_rangequeryrewriter

* 'develop' of github.com:eXist-db/exist: (109 commits)
  Bump dependency-check-maven from 6.0.3 to 6.0.4
  Wrong merge.... file needs to be deleted
  Fix for  eXist-db#3688
  Read buffer
  wrap file stream writes into BufferedOutputStreams.
  Remove old (unfinished?) code
  Bump rsyntaxtextarea from 3.1.1 to 3.1.2
  Feedback from review: use explicit services file
  Feedback from Adam
  Bump bcprov-jdk15on from 1.67 to 1.68
  Bump xmlunit.version from 2.8.1 to 2.8.2
  Feedback from Codacy
  Feedback from Codacy
  Setting the dot.
  Improved text a bit
  Handle potential (and real) NPE; allow issue to be ignored.
  Only delete (overwrite) file if user explicitly agrees
  Bump jansi from 2.1.0 to 2.1.1
  Reported by codacy
  Improve startup logging
  ...