Make rake jasmine:ci run specs correctly.

- Will replace rake core_specs.
- Remove obsolete dependencies & files -- most of these were for build tasks we
  are no longer using. Notably, rspec and spec_helper were deleted.

spec/javascripts/core/ReportDispatcherSpec.js

@@ -0,0 +1,40 @@
+describe("ReportDispatcher", function() {
+
+  it("builds an interface of requested methods", function() {
+    var dispatcher = new j$.ReportDispatcher(['foo', 'bar', 'baz']);
+
+    expect(dispatcher.foo).toBeDefined();
+    expect(dispatcher.bar).toBeDefined();
+    expect(dispatcher.baz).toBeDefined();
+  });
+
+  it("dispatches requested methods to added reporters", function() {
+    var dispatcher = new j$.ReportDispatcher(['foo', 'bar']),
+      reporter = jasmine.createSpyObj('reporter', ['foo', 'bar']),
+      anotherReporter = jasmine.createSpyObj('reporter', ['foo', 'bar']);
+
+    dispatcher.addReporter(reporter);
+    dispatcher.addReporter(anotherReporter);
+
+    dispatcher.foo(123, 456);
+
+    expect(reporter.foo).toHaveBeenCalledWith(123, 456);
+    expect(anotherReporter.foo).toHaveBeenCalledWith(123, 456);
+
+    dispatcher.bar('a', 'b');
+
+    expect(reporter.bar).toHaveBeenCalledWith('a', 'b');
+    expect(anotherReporter.bar).toHaveBeenCalledWith('a', 'b');
+  });
+
+  it("does not dispatch to a reporter if the reporter doesn't accept the method", function() {
+    var dispatcher = new j$.ReportDispatcher(['foo']),
+      reporter = jasmine.createSpyObj('reporter', ['baz']);
+
+    dispatcher.addReporter(reporter);
+
+    expect(function() {
+      dispatcher.foo(123, 456);
+    }).not.toThrow();
+  });
+});