ox: White spaces after export snippets are never ignored

* lisp/ox.el (org-export-data): White spaces after export snippets are
  never ignored.
* testing/lisp/test-ox.el: Add test.

Back-end developers should pay attention to the fact that white spaces
before and after an ignored export snippet now are accumulated in the
output.
Revert "Fix previous commit again"

This reverts commit a3e8a1d6048f36057a38fe31c34d5fae98b684bb.
Revert "ox-odt.el: Fix annotation insertion."

This reverts commit 9eb384fe4f9a8832c4adc1bed900bc5243c31e37.
org-capture.el (org-capture): Don't store multiple links over lines in the active region

* org-capture.el (org-capture): Don't store multiple links
over lines in the active region.

Thanks to Matt Lundin for reporting this.
Fix agenda generation error if agenda had time grid and agenda format
contain effort

* lisp/org-agenda.el (org-agenda-format-item): Ensure effort is "" when unset
org-compat.el (org-ignore-region): Tiny docstring fix

* org-compat.el (org-ignore-region): Tiny docstring fix.
org.el (org-store-link, org-link-search): Fix handling of links to #+NAME and #+TARGET keywords

* org.el (org-store-link, org-link-search): Fix handling of
links to #+NAME and #+TARGET keywords.
org.el (org-store-link): Storing multiple links in the active region now requires a triple prefix argument

* org.el (org-store-link): Storing multiple links in the
active region now requires a triple prefix argument.

Thanks to Matt Lundin for reporting bugs in this area.
Revert "org-capture.el (org-capture): Don't store multiple links over lines in the active region"

This reverts commit 2c994218ea67ced426f03d0a851eeec81f112dbc.
Merge branch 'master' of orgmode.org:org-mode
ox-latex: :long-listing avoids wrapping src-blocks within floats

* lisp/ox-latex.el (org-latex-long-listings): New variable.
(org-latex-src-block): Use new variable.
ox-latex: Allow use of the "tabu" and "longtabu" table environments

* lisp/ox-latex.el (org-latex--org-table, org-latex-table-row): Allow
  use of the "tabu" and "longtabu" table environments.  New table
  attribute :spread handles the width specification syntax of "tabu"
  and "longtabu" table environments.
org.texi: Fix typo

* doc/org.texi (Table of contents): Fix typo.