Change repo to generate both a library and a binary.

This repo will primary be a library, but for compliance testing it may make sense to have a binary operating in the same fashion as the node dustjs shim so I've set up this repo to generate both a library and a binary.

src/bin.rs

@@ -0,0 +1,9 @@
+extern crate nom;
+use parser::template;
+
+mod parser;
+
+fn main() {
+    let parsed_template = template("{#foo.bar}hello {name}{/foo.bar}!");
+    println!("{:?}", parsed_template);
+}

src/lib.rs

@@ -1,5 +1,3 @@
 extern crate nom;
 
 mod parser;
-
-fn main() {}