Remove debug assertion message.
Don't let an exception hinder HTTP client connections to be closed.
Fix using makeIsolated for creating heap allocated structs.
Merge branch 'master' of https://github.com/rejectedsoftware/vibe.d
fix imports - more restrictive import checking in dmd

- missing imports due to qualified usage

- missing selective import

- selective imports from wrong module
Merge pull request #584 from MartinNowak/fixImports

fix imports - more restrictive import checking in dmd
Merge branch 'master' of https://github.com/rejectedsoftware/vibe.d