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/matchers/toContainSpec.js

@@ -0,0 +1,24 @@
+describe("toContain", function() {
+  it("delegates to j$.matchersUtil.contains", function() {
+    var util = {
+        contains: jasmine.createSpy('delegated-contains').and.returnValue(true)
+      },
+      matcher = j$.matchers.toContain(util);
+
+    result = matcher.compare("ABC", "B");
+    expect(util.contains).toHaveBeenCalledWith("ABC", "B", []);
+    expect(result.pass).toBe(true);
+  });
+
+  it("delegates to j$.matchersUtil.contains, passing in equality testers if present", function() {
+    var util = {
+        contains: jasmine.createSpy('delegated-contains').and.returnValue(true)
+      },
+      customEqualityTesters = ['a', 'b'],
+      matcher = j$.matchers.toContain(util, customEqualityTesters);
+
+    result = matcher.compare("ABC", "B");
+    expect(util.contains).toHaveBeenCalledWith("ABC", "B", ['a', 'b']);
+    expect(result.pass).toBe(true);
+  });
+});