User->find_by_id.

* Check for the 'value' of the element before the submitted value
* Only check the submitted value if the form is submitted. Previously,
  only the 'value' was being checked if the form was submitted, which
  was completely wrong.

This leads to login disaster.

This is the setting that rejects invalid data. Too risky to turn on for 1.0_STABLE.

Converting to a bigint is way overkill, but I'mna blame XMLDB for that.

Conflicts:

	htdocs/lib/version.php

Move the post edits text inside the post box itself so it's easy to tell what post is being talked about.
(cherry picked from commit f3a475f2)

Conflicts:

	htdocs/interaction/forum/theme/default/post.tpl
	htdocs/interaction/forum/theme/default/simplepost.tpl

(cherry picked from commit 38fc37f9)

Small changes for fixes to (#3014) and (#3019) - exception handling for when curl is missing being the main one

Need to include the file where artefact_get_references_in_html is
defined.

event handler.

Escaping with {} adds the database prefix on the front, and is for table
names only. Columns like "group" should be escaped with double quotes.

(cherry picked from commit 50d7897a)

Conflicts:

	htdocs/lib/web.php

(cherry picked from commit 7f7114e2)

Conflicts:

	htdocs/interaction/forum/theme/default/simplepost.tpl

It looks like MochiKit fixed a bug it had with IE, that made our
workaround no longer necessary. Happily, this patch seems to fix it all,
but that's no thanks to IE's terrible debugging tools.

Also check it before checking the user's quota, because it's a cheaper
check.

an error.

Thanks to Christoph Lischetzki

While I was doing that, internationalised the one for wall posts, and
refactored the generation of the help message to a function.

This makes them fit in better.
(cherry picked from commit 3d0f51f5)

(cherry picked from commit 3f9bdf5c)

http://mahara.org/interaction/forum/topic.php?id=131
(cherry picked from commit 4c2a22677c3ae886f0a0f76aea15a0a15eb02eb4)

Now they behave better, and respect the language pack search path. get_languages is cached.

Now the following locations are searched:

* docroot - the english language pack lives here
* directories in $dataroot/langpacks matching *.utf8
* anything on langpacksearchpaths

This makes $dataroot/langpacks the preferred place to install language packs, and makes langpacksearchpaths unnecessary for most people.

The upshot of all this is that it'll be much easier to install language packs - just download to $dataroot/langpacks and decompress :)

Thanks to discussion with David Mudrak, Nicolas Martignoni, I?aki Arenaza and others on the forums - http://mahara.org/interaction/forum/topic.php?id=120