Make Windows directory layout uniform with everything else#29500

Merged

bors merged 2 commits intorust-lang:masterfrom

vadimcn:rustlib

Nov 3, 2015

Commits on Nov 1, 2015

Windows: Move target libraries to $rustroot/lib/rustlib/... - for symmetry with all other platforms.
vadimcn
committed

Commits on Nov 2, 2015

Merged windows and unix `find_libdir()`
vadimcn
committed