doc: minor tweaks to the dispatch documentation.

Thanks go to @ArthurClemens.
Fixes 563.
(cherry picked from commit 876566febbf7315baa3948d89e88aae9a5ea1c72)
smtp: fix e-mail receive.
(cherry picked from commit 9dab5d2c318c526545346eb70e30653da750621e)
deps: new z_stdlib.
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.
(cherry picked from commit 89df23f229e92bb85027c747bc21d065fe82d879)
mod_admin/mod_admin_frontend: made admin more responsive. Added first version of frontend editor based on mod_admin.
(cherry picked from commit 5807a12b135b46616c8e6110d5227b7b0e35f7c3)

Conflicts:
	modules/mod_admin/templates/admin_edit.tpl
	modules/mod_seo_sitemap/templates/_admin_edit_content_seo_extra.tpl
	src/support/z_utils.erl
mod_admin: fix '&' in doc description as it crashed the doc generation.
(cherry picked from commit 2cc7d3ce4b3fa68c98270cda8cb28f8ce972fed2)
core: fix failed merge.
mod_base: copy if_undefined filter from master.
mod_admin: fix body top padding for smaller screens.
(cherry picked from commit eca19ecfd684da5fa5af4573247b36e30fb96f5a)
mod_admin: Make the modal popup in the admin_frontend as wide as in the admin.
(cherry picked from commit fd7daa3f89ed3b3a2fddf57488355ef47531f7b2)
mod_menu: use short title; absolute positioning of item buttons.
mod_admin_frontend: minor textual changes, add dutch translation
(cherry picked from commit cb770003cbd5ccdebd80c174ec545995a9877130)
mod_menu: show warning when a resource is unpublished.
(cherry picked from commit 25b791781a3b625ec76bc2917a5d038e42210e9f)
mod_admin/mod_menu: added option so pass tab to connect/new dialog.
(cherry picked from commit b1cddd127f5326835c119f52c4a0893bc40e957d)
mod_admin_frontend: set default connect tab to 'new'
(cherry picked from commit cf656f9dfb4041f2ca616723f316246100367b14)
mod_admin_frontend: preselect the 'text' category for page linking.
(cherry picked from commit 3a6e1e1d6c3a8061f0b015a1d7be36bb1ecfbc1a)
mod_admin: make the logon more responsive (header row-fluid; some styling)
(cherry picked from commit 91ea7fe2ce537f0497a793ad23dead46e95a321b)
mod_admin_frontend: fixes for editing blocks and language selections.
(cherry picked from commit 195643b28fb985dcb427103421a1c9ef82a5c8f2)
mod_admin: Resources in the meta category can have 'features'

Features are certain resource properties (usually in the form of
checkboxes) that decide what to show or hide on certain pages in the
admin. Used for example to control where to show address and geodata
edit boxes.
(cherry picked from commit 184397df3f38ce103674d133a1d606f7ce98fef3)

Conflicts:
	NEWS
	modules/mod_admin/templates/admin_edit.tpl
mod_admin: nicer fixed save button bar
(cherry picked from commit bc3cad4fab94037c858f276d90e2d6b7a563bf5a)
mod_admin_frontend: see images in the tinymce. Nicer save/cancel bar
(cherry picked from commit 0710ebe7d1199102504c0d8f98e1bb576996abe6)