evantahler/actionHero — pull request #155 by jacobbubu (2013-05-15 00:44:56+00:00)
Title: Cache loading with extending the expireTime

Initial null of expireTimestamp still keep the cache item in persistent (load with extension will be ignored).

``` javascript
apiObj.cache.load("testKey_slow",extension,function(err, load_resp){
load_resp.should.equal("abc123");
...
}
```

`extension` could be omitted that will be fallback to original implementation.