- unittest_helper:  * added timeouts to unittest_helper:get_ring_data/0 again (spawn a process to avoid spamming of the calling process' inbox with late messages)  * some type spec improvements
- unittest_helper:
 * added timeouts to unittest_helper:get_ring_data/0 again (spawn a process to avoid spamming of the calling process' inbox with late messages)
 * some type spec improvements

git-svn-id: d89f83fc72fb49d2f5b112dfb73cea192610bdff@2623 71766da9-9752-0410-ab17-bfafa751c56a

fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris,fredrikelinder/scalaris