- make print_ring_data configurable and silent by default (macro TRACE_RING_DATA).
- make print_ring_data configurable and silent by default (macro TRACE_RING_DATA).


git-svn-id: d89f83fc72fb49d2f5b112dfb73cea192610bdff@1835 71766da9-9752-0410-ab17-bfafa751c56a

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