MDL-43019 SCORM: always use iframe instead of object - backported from 2.6 - fixes issue with IE 11 SCORM packages not loading
MDL-39575 install: better handling of database creation error.

Implemented better handling of DML exceptions.
Added translation for cannotcreatedb exception.
MDL-43131 qbank: Fix show question text when first viewing.

When you followed the link to the question bank, the checkbox for the
"Show question text in the question list" option correctly reflected the
user's preference, but what was actually shown in the question bank did
not.
MDL-43082 Themes IE 9 Compatibility View doesn't support SVG.
MDL-31410 always send 200 in PayPal IPN response and hide all errors
Merge branch 'MDL-39618-24' of git://github.com/danpoltawski/moodle into MOODLE_24_STABLE
MDL-40003 mod_assign: Fixed submission comments not being restored
Merge branch 'MDL-40003-24' of git://github.com/FMCorz/moodle into MOODLE_24_STABLE
Merge branch 'm24_MDL-43019' of git://github.com/danmarsden/moodle into MOODLE_24_STABLE
MDL-43279 block_blog_recent: fixed undefined property notice
Merge branch 'MDL-43131_24' of git://github.com/timhunt/moodle into MOODLE_24_STABLE
Merge branch 'm24_MDL-43082_IE9_Compat_View_SVG_Say_No' of https://github.com/scara/moodle into MOODLE_24_STABLE
MDL-43135 Guest Enrol: new language string for with key icon

AMOS BEGIN
CPY [pluginname,enrol_guest], [guestaccess_withpassword,enrol_guest]
CPY [pluginname,enrol_guest], [guestaccess_withoutpassword,enrol_guest]
AMOS END
Merge branch '24STABLE-wip-MDL-43135' of https://github.com/jennymgray/moodle into MOODLE_24_STABLE
Merge branch 'wip-MDL-43279-m24' of git://github.com/marinaglancy/moodle into MOODLE_24_STABLE
MDL-43218 navigation: Remove link to blogs when they are disabled
MDL-43218 blog: prepare the blog navigation only when needed
Merge branch 'w50_MDL-31410_m24_paypalipn' of https://github.com/skodak/moodle into MOODLE_24_STABLE
MDL-31410 paypal: fix problem on notifications

This commit fixes a PHP warning about using a
unititialised variable and also the problems when
notifications are enabled and there is not yet a
teacher in the course, defaulting to admin for student
notifications and preventing teacher notifications to happen.
Automatically generated installer lang files