Bump objc crate to 0.2.4

SSheldon · SSheldon · commit c7896cd54149 · 2018-07-22T11:39:19.000-07:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "objc"
-version = "0.2.3"
+version = "0.2.4"
 authors = ["Steven Sheldon"]
 
 description = "Objective-C Runtime bindings and wrapper for Rust."
