drafted favourites refactoring
virtual DsTable::insertRecord und createTable
removed old index file
trivial adjustments
added DsTableFav class

This is a class that inherits from DsTable
and has optimized SQL routines to retrive
the top most recent and popular records. It
also automatically patches records and schema
on creation.
basic testing2 + testDsTableFav()

Got QtTest to work like I wanted to. It's embedded in the
application and run with the --test argument.