make db connection through crudDB obsolete by using connectdb.py
removing result to json from all queries in querydb.py and move the result to json to webpy_esapp
Merge branch 'master' of h05-dev-vm19:/srv/www/eStation2
clean (delete) some files under database
implementing test_querydb.py
implementing test_querydb.py
Merge branch 'master' of h05-dev-vm19:/srv/www/eStation2
implementing test_querydb.py
implementing test_querydb.py
merge

Merge branch 'master' of https://github.com/eStation2/eStation2

Conflicts:
	apps/productmanagement/datasets.py
	apps/productmanagement/test/test_datasets.py
Merge branch 'master' of /srv/www/eStation2

Conflicts:
	apps/productmanagement/datasets.py