Add example + travis

.travis.yml

@@ -0,0 +1,10 @@
+language: rust
+rust:
+  - stable
+  - beta
+  - nightly
+
+sudo: false
+
+notifications:
+  email: false

examples/claims.rs

@@ -0,0 +1,24 @@
+extern crate jwt;
+extern crate rustc_serialize;
+
+use rustc_serialize::{Encodable};
+use jwt::{
+    Algorithm,
+    encode,
+    decode
+};
+
+#[derive(Debug, RustcEncodable, RustcDecodable)]
+struct Claims {
+    sub: String,
+    company: String
+}
+
+fn main() {
+    let my_claims = Claims {
+        sub: "b@b.com".to_owned(),
+        company: "ACME".to_owned()
+    };
+    let token = encode::<Claims>(my_claims, "secret".to_owned(), Algorithm::HS256).unwrap();
+    let claims = decode::<Claims>(token.to_owned(), "secret".to_owned(), Algorithm::HS256);
+}