Set version to 1.1.0 in preparation for release

Author: jvoegele

README.md

@@ -35,7 +35,7 @@ of dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:wait_for_it, "~> 1.0.0"}
+    {:wait_for_it, "~> 1.1.0"}
   ]
 end
 ```

mix.exs

@@ -4,7 +4,7 @@ defmodule WaitForIt.Mixfile do
   def project do
     [
       app: :wait_for_it,
-      version: "1.0.0",
+      version: "1.1.0",
       description: "Elixir library for waiting for things to happen",
       source_url: "https://github.com/jvoegele/wait_for_it",
       elixir: "~> 1.5",