renaming 'plugin-boilerplate' to 'plugin-name' to be more consistent with the naming conventions of the class file

related #48

plugin-name/js/admin.js

@@ -0,0 +1,6 @@
+(function ($) {
+	"use strict";
+	$(function () {
+		// Place your administration-specific JavaScript here
+	});
+}(jQuery));

plugin-name/js/display.js

@@ -0,0 +1,6 @@
+(function ($) {
+	"use strict";
+	$(function () {
+		// Place your public-facing JavaScript here
+	});
+}(jQuery));