add $browser.defer and $defer service and fix async xhr cache issue

- Closes #152 ($resource().query() sometimes calls callback before
  returning, and it shouldn't)
- add $browser.defer method
- add $defer service
- integrate $browser.defer with outstandingRequests counter in $browser
- fix all old tests that relied on buggy behavior

1 files changed, 2 insertions, 0 deletions

diff --git a/test/ResourceSpec.js b/test/ResourceSpec.js
index a026263b..6b987bd8 100644
--- a/test/ResourceSpec.js
+++ b/test/ResourceSpec.js
@@ -184,6 +184,8 @@ describe("resource", function() {
 
     $browser.xhr.expectGET('/Person/123').respond('[\n{\nname:\n"rob"\n}\n]');
     var person2 = Person.query({id:123});
+    $browser.defer.flush();
+
     expect(person2[0].name).toEqual('misko');
     var person2Cache = person2;
     $browser.xhr.flush();