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WARNING:  DEV IS CURRENTLY VERY UNSTABLE.

This is a mega-checkin of the new Roles system.   A lot of changes have
been made in core and modules.

Currently there are a lot of rough edges and known problems.  We are
working hard on these .. .the reason for getting this into HEAD at this
stage is enable us to move faster (our branch was diverging from HEAD
too much).

Please keep an eye on http://docs.moodle.org/en/Roles for current status
and information for developers on how to use the new Roles system.

Swf now disabled by default in Mediaplugin and added explanation SC#284; merged from MOODLE_16_STABLE

Also, cleaned up the marking code for numerical and short answer questions, partly by making the base-class method more useful.

Rewrote the way the way short answer questions do wildcard matching to be more robust, Unicode safe, and generally not suck.

This is a big change, so I am pleased to report I tested it using my new Selinium  test suite. See: http://moodle.org/mod/forum/discuss.php?d=51161

return that as the max grade


Author: Jun Yamog <jun@catalyst.net.nz>

check_dir_exists() has new recursive parameter - it should help clean up the restore code a bit and could be handy elsewhere too; tested in both linux and windoze

string is necessary in 1.6 (so must stay here for backward compatibility of translated language packs, created with Moodle editor)

Bug #5352 - upgrade might be interrupted by user - upgrades are now logged into moddata/upgradelogs/, user abor is ignored and concurrent running of upgrades is prevented from one browser

Even though Postgres 7.4.x is officially supported, several upgrade scripts use syntax that only works in Postgres 8.x. and it's impossible to finish the upgrade.

The attached patch fixes those scripts.

Saludos. I�aki.

Author: I�aki Arenaza
Review: Jun Yamog, Martin Langhoff

merged from MOODLE_16_STABLE

Even though Postgres 7.4.x is officially supported, several upgrade scripts use syntax that only works in Postgres 8.x. and it's impossible to finish the upgrade.

The attached patch fixes those scripts.

Saludos. I�aki.

Author: I�aki Arenaza
Review: Jun Yamog, Martin Langhoff

merged from MOODLE_16_STABLE

Applied the fix by Samuli.Karevaara, from the bug report - the directory is checked for existence beforehand.
Previously it was created if it didn't exist, then the files within it were counted.


Author: Luke Hudson <luke@catalyst.net.nz>

The link allows the page to be reloaded, which saves people from only seeing the cached copy. This is the equivalent of doing Shift+Reload in most
browsers.


Author: Luke Hudson <luke@catalyst.net.nz>