mod_base: don't post the logon form, as controller_logon can't handle POSTs.
mod_base_site: separate copyright template. Use tablet/desktop footer for (smart)phone.
core: don't crash when an identity has duplicates.
mod_base_site: remove scrollbars from share dialog
mod_l10n: japanese translation for days and months.
mod_backup: Also prefix the periodic backups with the site name

This prevents the backup module from becoming confused and creating a
backup file every hour between 3 and 7.
mod_oembed: fixes for provider list.
Added oembed_client:providers/2 call for debugging.
Added lager logging.
core: added extra arg to m_media:replace/insert for m_rsc_update options.
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.
core: fix for upload from url.
mod_base: simpler and better z.clickable.js
m_identity: Make password check pluggable

Also document how to migrate from an alternative (legacy) password
hashing scheme.
core: Add {is_import,true} flag to z_datamodel:manage

This allows the call to preserve created/modified timestamps when
creating resources.
Fix z_sites_dispatcher:split_host/2 for 'none' value

...which is present in zotonic_status' config file.
zotonic_status: Add API for global site status check

http://127.0.0.1:8000/api/zotonic_status/check
doc: Update preinstall instructions for Ubuntu
mod_mailinglist: New dialog which lets you combine lists

Using this new dialog, the recipients of two lists can be combined
according to the three set operations union, subtract and intersect.

Also add documentation for the mailinglist recipients admin page.
mod_custom_redirect: new module to handle redirects for unknown domains and paths.
Redirects are fully configurable and stored in the database.
mod_custom_redirect: fix delete buttons, and type of submit button
mod_custom_redirect: check for access permission when saving configuration.