Remove Travis cruft

Closes #48

Author: shepmaster

README.md

@@ -3,8 +3,7 @@
 A tiny library to efficiently search strings for sets of ASCII
 characters or byte slices for sets of bytes.
 
-[![Build Status](https://travis-ci.org/shepmaster/jetscii.svg)](https://travis-ci.org/shepmaster/jetscii) [![Current Version](https://img.shields.io/crates/v/jetscii.svg)](https://crates.io/crates/jetscii) [![Documentation](https://docs.rs/jetscii/badge.svg)][docs]
-
+[![Current Version](https://img.shields.io/crates/v/jetscii.svg)](https://crates.io/crates/jetscii) [![Documentation](https://docs.rs/jetscii/badge.svg)][docs]
 
 ## Examples