mod_admin: Make unlink button nicer.
Style the page connections referer button
mod_import_csv: improved parsing of CSV files, now handles quoted fields and performs automatic translation from latin-1 to utf-8
mod_import_csv: remove stray underscore character from module name...
mod_admin: make some strings translatable, better selection of title language.
mod_admin: pass all event args to the reload_media render function.
mod_menu: add option for menu-item-template to do_menuedit
mod_twitter: Fix Twitter logon and API access for changed 1.1 API
mod_oembed: Fix setting media title when programmatically importing an oembed media item.

The title used to remain empty when a call like this was made:

    m_rsc:insert([{category, media}, {oembed_url, "http://www.youtube.com/watch?..."}], Context).

This is now fixed, the title is set when a new OEmbed URL is used and
the rsc does not yet have a title.
mod_admin_frontend: don't crash if pubzub is undefind.
mod_base: added the option 'catinclude' to the update action.
m_media: accept upload of 'data:' urls for replace_url and insert_url functions.
mod_authentication: send e-mails to all matching accounts, if and only if a username is set.
mod_authenticaton: fix input sizes for password, and e-mail/username fields.
core: added z:ld/0 to load all re-compiled beam files.
build, core: Added erlexec as a dependency

Erlexec executes and controls OS processes from Erlang/OTP.
See https://github.com/saleyn/erlexec
core: Use ensure_started instead of calling exec:start directly