Merge pull request #578 from egaburov/master

added --target=avx-i64x4 & svml support for all sse/avx modes
Fix for Windows buils to include new target: avx-i64x4
Merge pull request #583 from dbabokin/win-fix

Fix for Windows build to include new target: avx-i64x4
Merge remote-tracking branch 'upstream/master' into default_double