Fix python test -- Related to #2490
Initial fixes to make ruby driver work with threads.
Ruby style fix.
Ruby driver bug and concurrency fixes.
Merge branch 'michel_2490_python_test' into next
Fixed out of disk space error message (and general i/o error code)
Clarified a comment. When running out of disk space, we probably can't write to the log either.
Fix for unicode
Merge branch 'daniel_1945' into next
Merge branch 'michel_2446_unicode' into next
Merge branch 'mlucy_ruby_driver_fixes' into next
Merge branch 'sam_coro_pool_deboost' into next
Merge branch 'next' into sam_2156