ox-publish: Fix "Invalid time specification" error with timestamps in DATE

* lisp/ox-publish.el (org-publish-find-date): Fix "Invalid time
  specification" error with timestamps in DATE.
Merge branch 'maint'
org.el (org-agenda-text-search-extra-files): Fix typos in docstring

* org.el (org-agenda-text-search-extra-files): Fix typos in
docstring.
Merge branch 'maint'
org-agenda.el: Fix a bug about narrowing to wrong region boundaries

* org-agenda.el (org-agenda, org-search-view, org-tags-view)
(org-agenda-get-day-entries, org-agenda-set-restriction-lock):
Use (current-buffer) as the value of `org-agenda-restrict'.
Fix a bug about narrowing to wrong region boundaries when
`org-agenda-restrict' is non-nil.

Thanks to Thomas Holst for reporting this bug.
Merge branch 'maint'
org.texi (Export settings): Document `org-export-allow-bind-keywords'

* org.texi (Export settings): Document
`org-export-allow-bind-keywords'.

Thanks to Thomas S. Dye for spotting this.
Merge branch 'maint'
Rephrase previous change
Merge branch 'maint'
contrib/lisp/org-contacts: Fix two typos in comments

* contrib/lisp/org-contacts.el (org-contacts-db): fix typo in the
  word `matching'.
* contrib/lisp/org-contacts.el (org-contacts-complete-group): fix typo
  in the word `found'.

TINYCHANGE
contrib/lisp/org-contacts: Allow org links in properties

* contrib/lisp/org-contacts.el (org-contacts-split-property):
  Introduce a custom version of split-string that keeps org links
  intact.

* contrib/lisp/org-contacts.el (org-contacts-strip-link): Introduce a
  new function that removes brackets, description, link type and colon
  from an org link string returning the pure link target.

* contrib/lisp/org-contacts.el (provide 'org-contacts): Remove a
  redundant line.

* contrib/lisp/org-contacts.el (org-contacts-complete-group,
  org-contacts-complete-name, org-contacts-view-send-email,
  org-contacts-get-icon, org-contacts-vcard-format): Apply the new
  functions to the already existing functions extracting telephone
  numbers and email addresses from the properties.

Allowed separators for email addresses and phone numbers are `,', `;'
and whitespace.  `:' is not allowed anymore as separator to avoid
confusion with implicit links.

Examples of properties that are possible after those changes:

* Surname, Name
:PROPERTIES:
:EMAIL:    mailto:test2@test.de; [[mailto:name@test.de]] foo@bar.biz
:PHONE:    [[tel:+49 351 4129535]], +491766626196 [[+49 (351) 41295-35]]
:END:

Phone links of the form [[tel:+49 351 412 95-35][My phone number]] or
[[tel:+49 351 41295-35]] are expected.  `-', `/', `(', `)' and
whitespace characters are allowed in telephone numbers.
contrib/lisp/org-contacts: Introduce the constant `org-contacts-property-values-separators'

* contrib/lisp/org-contacts.el (org-contacts-property-values-separators):
  Definition of a new constant that will be used as default value of
  separators for `org-contacts-split-property'.

* contrib/lisp/org-contacts.el (org-contacts-vcard-format): We are now
  using the default separator in general.

* contrib/lisp/org-contacts.el (org-contacts-show-map): Line break
  corrected.

* contrib/lisp/org-contacts.el (org-contacts-split-property): Correct
  the comment describing the function.  Application of the newly
  defined constant `org-contacts-property-values-separators'.
ox-taskjuggler.el: Fix a typo in org-taskjuggler-get-start

* ox-taskjuggler.el (org-taskjuggler-get-start): Use memq
instead of member as we are searching for symbols.  Also
search in valid-task-attributes instead of
valid-resource-attributes.