Use Debian Stretch for cross-compiling our Windows builds
We should move away from Jessie to Stretch for a number of reasons (Jessie is no properly supported Debain distro anymore and it would help with #28238 (moved) it seems, just to name two)
We should move away from Jessie to Stretch for a number of reasons (Jessie is no properly supported Debain distro anymore and it would help with #28238 (moved) it seems, just to name two)