…_wp_get_sources_from_meta

…pes.

* Revert to 0 (first element) as default mime type ofr sub sizes

# Conflicts:
#	src/wp-admin/includes/image.php
#	tests/phpunit/tests/image/functions.php

…ime_type parameter and various private low-level functions to avoid duplicate and complex code.

…he mime_type method parameter.

…images for additional mime types.

# Conflicts:
#	src/wp-includes/media.php
#	tests/phpunit/tests/media.php

…ss-develop-fork into add/webp-uploads

…l type.

…sizeinfo data

…into trunk