fixed the pks in DataSetTemporal.
added a sort-field to ongong_timeseries with a join.
Merge branch 'devel' of https://github.com/sbpcs/MBmaint into devel
added info about sql examples to readme.txt
committing a test query to have the repo up to date so I can delete it.
removing a test query that is no longer needed.
'added the template for DataSetSites.'