TST mockserver cleanup
TST mockserver cleanup

* some resources are renamed to match their URLs better;
* mockserver.py can now be executed directly from shell.

dwdm/splash,sunu/splash,sunu/splash,sunu/splash,dwdm/splash,kmike/splash,Youwotma/splash,dwdm/splash,pawelmhm/splash,kod3r/splash,Youwotma/splash,pombredanne/splash,pawelmhm/splash,kod3r/splash,pombredanne/splash,pombredanne/splash,kmike/splash,pawelmhm/splash,kmike/splash,Youwotma/splash,kod3r/splash