cleanup and increment version

Author: Jared Forth

.travis.yml

@@ -1,6 +1,6 @@
 [package]
 name = "webp"
-version = "0.2.3"
+version = "0.2.4"
 authors = ["Jared Forth <jaredforthdev@gmail.com>"]
 edition = "2018"
 

Cargo.toml

@@ -1,5 +1,4 @@
 ![Build Status](https://github.com/jaredforth/webp/actions/workflows/rust.yml/badge.svg)
-[![Build status](https://ci.appveyor.com/api/projects/status/w75cp0q4qr0hngf8?svg=true)](https://ci.appveyor.com/project/jaredforth/webp)
 [![Crate](https://img.shields.io/crates/v/webp.svg)](https://crates.io/crates/webp)
 [![API](https://docs.rs/webp/badge.svg)](https://docs.rs/webp)
 ![Crates.io](https://img.shields.io/crates/d/webp)