MDL-31055 backport disabledIf fix from 2.0. (MDL-27045)
MDL-31213 fix incorrect modifications of quickforms attributes
Merge branch 'w03_MDL-31213_m19_attributesmess' of git://github.com/skodak/moodle into MOODLE_19_STABLE
weekly release 1.9.16+
weekly release 1.9.16+
weekly release 1.9.16+
MDL-25185 - data - Allowing data from the database to be exported according to group roles.
weekly release 1.9.16+
Merge branch 'wip-MDL-25185-MOODLE_19_STABLE' of git://github.com/abgreeve/moodle into MOODLE_19_STABLE
MDL-25185 - data - whitespace fixes
weekly release 1.9.16+
weekly release 1.9.16+
weekly release 1.9.16+
MDL-31248 - lib - Alteration to the rc4encrypt function to allow for old password use.
MDL-31248 - lib - prevent moodle_strtolower() silent discard to lead to false-correct usernames
MDL-31248 - lib - Gah, erroneus condition fixed.

For sure that leaded to accept anything as valid username
for cookies in 19_STABLE. That explains why garbled username were
being transformed into "invented" usernames, instead of blank.
MDL-31248 - lib - Retaining the old password key and creating a new cookie prefix.
Revert "MDL-31248 - lib - Gah, erroneus condition fixed."

This reverts commit e85a54d931807e8eb407fac8024fd3877579332e.
Revert "MDL-31248 - lib - prevent moodle_strtolower() silent discard to lead to false-correct usernames"

This reverts commit c67bc65cbec7e9f0f3d3502f5383fd9193251d0e.
Revert "MDL-31248 - lib - Alteration to the rc4encrypt function to allow for old password use."

This reverts commit f8adbd6a02f69db3b267e50a27da15de4c76813b.