switch software release recipe (from softwaretype to switch-softwaretype)

The related forum discussion.

The recipe change (from softwaretype to switch-softwaretype) concerns:

• backupserver
• htmlvalidatorserver
• seleniumserver
• turnserver

I had to change turnserver/test/test.py because the listening_ip is now mandatory and have to be set in the test.

Tests on erp5 are in progress.