Provide 201 return code for property insertion API version > 1.0
Add more checks on non-existent key fields, especially for deletes.
Change header copyright notice.
Add to change log.
Improve handling of mime types and suffixes.
Fix faults in the handling of monitoring data and computation of results.
Merge branch 'develop'
Update change log
Fix problem in header checking
Merge branch 'origin/develop'