Squashed spy refactor and new spy syntax

Jasmine spies now have a 'and' property which allows the user to
change the spy's execution strategy-- such as '.and.callReturn(4)'
and a 'calls' property which allows inspection of the calls a spy
has received.

* This is a breaking change *

There is a CallTracker that keeps track of all calls and arguments
and a SpyStrategy which determines what the spy should do when it
is called.

spec/core/matchers/toContainSpec.js

@@ -1,7 +1,7 @@
 describe("toContain", function() {
   it("delegates to j$.matchersUtil.contains", function() {
     var util = {
-        contains: jasmine.createSpy('delegated-contains').andReturn(true)
+        contains: jasmine.createSpy('delegated-contains').and.callReturn(true)
       },
       matcher = j$.matchers.toContain(util);
 
@@ -12,7 +12,7 @@ describe("toContain", function() {
 
   it("delegates to j$.matchersUtil.contains, passing in equality testers if present", function() {
     var util = {
-        contains: jasmine.createSpy('delegated-contains').andReturn(true)
+        contains: jasmine.createSpy('delegated-contains').and.callReturn(true)
       },
       customEqualityTesters = ['a', 'b'],
       matcher = j$.matchers.toContain(util, customEqualityTesters);