Fixes #207 - Handle CLI errors, and exit with code 1 if there are errors

lib/cli.js

@@ -71,7 +71,10 @@ exports = module.exports = function(args) {
 
   var emitter = new Emitter();
 
-  emitter.on('error', function(){});
+  emitter.on('error', function(err){
+    console.error(err);
+    process.exit(1);
+  });
 
   var options = {
     stdout: argv.stdout

lib/render.js

@@ -45,7 +45,7 @@ function render(options, emitter) {
       emitter.emit('render', css);
     },
     error: function(error) {
-      emitter.emit('error', error);
+      emitter.emit('error', chalk.red(error));
     }
   });
 }