add logging to failed remote requests for crons
Use async crons, unless the config says otherwise.
SQLite blocks async cron requests, so don't do that.
update getPhotoURL to accept a photo ID, an array of photo properties, or a SimpleXMLElement as returned from photosGetInfo().
Update the shortcode caching to store an array.
Allow FlickrSilo::silo_get() to obtain the raw content of Flickr images.
Remove unnecessary EventLog debugging.
fix typo
instantiate new Flickr object earlier in the shortcode filter
Typo fix in getPhotoURL, so that the returned URL is actually valid
remove unnecessary EventLog debug
Don't use blank values in the IN clause.
Fixes habari/habari#452
Allow url_args to be filtered upon URL generation.
Fixes habari/habari#451
Update FlickrAPI and FlickrSilo to use RemoteRequest for all Flickr interactions. Specifically use HTTP POST for all Flickr API interactions. Photo uploads work provided you pass the filename of an on-disk image: trying to post raw image data doesn't yet work.
Helper methods for ajax URLs.