Flickr now SSL-only

[hugovk]

Flickr images weren't being loaded in Tweets because the Flickr API is now SSL-only.

http://code.flickr.net/2014/04/30/flickr-api-going-ssl-only-on-june-27th-2014/

The fix is to simply add a s to the http.

Tested on Symbian/Nokia 808.