Bump version.

Cargo.toml

 [package]
 name = "termion"
-version = "1.1.1"
+version = "1.1.2"
 authors = ["ticki <Ticki@users.noreply.github.com>"]
 description = "A bindless library for manipulating terminals."
 repository = "https://github.com/ticki/termion"