imce_scan_directory is slow and times out

The following is a patch for the latest release tag 7.11 that adds a new scan function "imce_scan_directory_standard_image_size". This function does not attempt to get accurate image sizes but uses a default for all images.

It creates a new config variable "imce_file_browser_default_image_size" which takes an array where you can change the default size to what you wish. Currently, it's set to 400x400. One thing to note however is that when the image preview loads that the image still maintains the correct proportions so it's nice that way. On images smaller than 400px in one dimension they do get upscaled which causes artifacts to show in the preview.

To use the new function you can update the settings.php file to have the following

$conf['imce_custom_scan'] = 'imce_scan_directory_standard_image_size';