Merge branch 'wip-wayland' into 'master'

Upgrade: bump sdl2 and sdl2-sys dependency to v0.35

See merge request redox-os/orbclient!70

Cargo.toml

 [package]
 name = "orbclient"
-version = "0.3.31"
+version = "0.3.32"
 authors = ["Jeremy Soller <jackpot51@gmail.com>"]
 description = "The Orbital Client Library"
 documentation = "https://docs.rs/orbclient"
@@ -19,8 +19,8 @@ name = "orbclient"
 path = "src/lib.rs"
 
 [target.'cfg(all(not(target_os = "redox"), not(target_arch = "wasm32")))'.dependencies]
-sdl2 = { version = "0.34", features = ["raw-window-handle"] }
-sdl2-sys = "0.34"
+sdl2 = { version = "0.35", features = ["bundled", "static-link", "raw-window-handle"] }
+sdl2-sys = "0.35"
 libc = "0.2"
 raw-window-handle = "0.3"