20191203-113558-89cecfe: Unit testing (#35)

* added configfile
test replace
test locking
preliminary testing of bbox (commented out)

* test replacing referenced lines and polygons

* rewrite tests to async

* moved most constants to separate classes
always delete locks and check if deleted

* some refactoring

* get prefix from xml
more refactoring

* get all schemaLocations from file

* always delete locks after tests

* added test for insert and delete
use guids consistently

* remove clutter

* update .gitignore