implement sl_environ on win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32
Merge branch 'master' into win32