Switch back to dylib

-gnu is somewhat broken using cdylib: rust-lang/rust#37530
But we should be able to statically link msvcrt: rust-lang/rust#37545

Author: urschrei

Cargo.toml

@@ -18,7 +18,7 @@ rayon = "0.4.0"
 
 [lib]
 name = "lonlat_bng"
-crate-type = ["cdylib"]
+crate-type = ["dylib"]
 test = true
 doctest = false
 doc = true