gossip2 / gossip_load: fix type_check_SUITE, esp. pid_groups

git-svn-id: https://scalaris.googlecode.com/svn/trunk@5981 71766da9-9752-0410-ab17-bfafa751c56a
gossip2: activate via rm

git-svn-id: https://scalaris.googlecode.com/svn/trunk@5982 71766da9-9752-0410-ab17-bfafa751c56a
gossip2 / gossip_load: improve test suite, esp. startup and speed

git-svn-id: https://scalaris.googlecode.com/svn/trunk@5983 71766da9-9752-0410-ab17-bfafa751c56a