mod_oembed: fixes for provider list.
Added oembed_client:providers/2 call for debugging.
Added lager logging.
(cherry picked from commit 031e877cf7908d0f6c622b8532a81a9af865019a)
mod_import_csv: connected reset checkbox, now also forces re-import of items.
Added support for 'medium_url' column name, downloads and imports an url for a medium item.
Added lager logging.
Added filtering of escaped quotes.
(cherry picked from commit 48f6b96ab37f819eee3cd9f55d2e71bebba0b28b)
core: added extra arg to m_media:replace/insert for m_rsc_update options.
(cherry picked from commit 086d809fc2aec3926444169c30fb53c0f62e8e24)