Cache responses from the AppStore server

Otherwise every time the AppStore was opened a lot of connections to the AppStore server were made which resulted in a terrible performance.

This changeset will cache the response for a sensible time so that only the first request will be somewhat slow.

Performance changes:
- Loading a category took previously more than 3 seconds on my machine. Now for every follow-up request it takes less than 200ms, resulting in a performance gain of 1950%
- Loading the category list took previously about 750ms - now it takes 154ms, a total performance gain of 395%

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/private/ocsclient.php b/lib/private/ocsclient.php
index 351027d8018..7ce6723128b 100644
--- a/lib/private/ocsclient.php
+++ b/lib/private/ocsclient.php
@@ -147,7 +147,7 @@ class OC_OCSClient{
 			$app['changed']=strtotime($tmp[$i]->changed);
 			$app['description']=(string)$tmp[$i]->description;
 			$app['score']=(string)$tmp[$i]->score;
-			$app['downloads'] = $tmp[$i]->downloads;
+			$app['downloads'] = (int)$tmp[$i]->downloads;
 
 			$apps[]=$app;
 		}