- sqldb.ISqlConnection provides the same functionality as SimpaDbUtil.ISqlConnection, with much greater performance thanks to python contexts. However the interface is not compatible, so codes wanting to switch from SimpaDbUtil.ISqlConnection to sqldb.ISqlConnection need adjusting.
- migrated quman to use sqldb.ISqlConnection (as a result the sync now takes 3seconds instead of 60, because of the drastic reductin of calls to mysql and ssh)
- SimpaDbUtil.ISqlConnection will be deleted once every code using SimpaDbUtil.ISqlConnection has been migrated to sqldb.ISqlConnection
work related to [https://bugzilla.ipr.univ-rennes.fr/show_bug.cgi?id=3093]