Add Browser-Sync.

This replaces:  serve and open tasks, livereload

As of this commit, index.html is not served (because it isn't in
build/).

Author: pprince

Diff for: gulp/tasks/watch.js

@@ -1,10 +1,18 @@
 var gulp       = require('gulp');
 var config     = require('../config');
+var gulp        = require('gulp');
+var browserSync = require('browser-sync');
 
 gulp.task('watch', function() {
 	gulp.watch('src/sass/**', ['compass']);
 	gulp.watch('src/images/**', ['images']);
 	// Note: Javascript watching is handled by watchify
 	// in gulp/tasks/browserify.js, when this flag is true
 	config.isWatching = true;
+
+	browserSync.init(['build/**'], {
+		server: {
+			baseDir: 'build'
+		}
+	});
 });

Diff for: package.json

@@ -26,6 +26,7 @@
     }
   },
   "devDependencies": {
+    "browser-sync": "~0.8.2",
     "browserify-shim": "~3.4.1",
     "browserify": "~3.36.0",
     "coffeeify": "~0.6.0",