Added missing word to emulateHTTP comment
Fix same mutation problem with existing/non-existing mix of models
Merge pull request #2539 from fixe/patch-1

Added missing word to emulateHTTP comment
Update PATCH/xhr check so that IE9 works

Fixes #2476
Merge pull request #2550 from jerryorr/master

Update PATCH/xhr check so that IE9 works
Fix #2538 - Only transition if both pushState and hashChange are requested.
Merge pull request #2565 from braddunbar/hashchange-false

Fix #2538 - Only transition if both pushState and hashChange are requested.
Fix #2569 - Add repository to package.json.
Fix #2554 - adding clarification about route behavior
Pass options when calling Model#url.