A fix for #1670
Adjusted the limit on the free coro list (given that it is a per-thread limit)
Merge branch 'next' into daniel_1670
fixing query interruption on HTTP connection close
Merge branch 'next' into daniel_1670
Merge branch 'grey_issue_1932_v2' into next
Merge branch 'daniel_1670' into next
Merge branch 'next' into daniel_265