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/core/matchers/toEqualSpec.js

@@ -1,28 +0,0 @@
-describe("toEqual", function() {
-  it("delegates to equals function", function() {
-    var util = {
-        equals: jasmine.createSpy('delegated-equals').and.returnValue(true)
-      },
-      matcher = j$.matchers.toEqual(util),
-      result;
-
-    result = matcher.compare(1, 1);
-
-    expect(util.equals).toHaveBeenCalledWith(1, 1, []);
-    expect(result.pass).toBe(true);
-  });
-
-  it("delegates custom equality testers, if present", function() {
-    var util = {
-        equals: jasmine.createSpy('delegated-equals').and.returnValue(true)
-      },
-      customEqualityTesters = ['a', 'b'],
-      matcher = j$.matchers.toEqual(util, customEqualityTesters),
-      result;
-
-    result = matcher.compare(1, 1);
-
-    expect(util.equals).toHaveBeenCalledWith(1, 1, ['a', 'b']);
-    expect(result.pass).toBe(true);
-  });
-});