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Currently translated at 100.0% (2834 of 2834)
no need to disable contructor of SplObjectStorage

Signed-off-by: Chirayu Chiripal <chirayu.chiripal@gmail.com>
Translated using Weblate (Azerbaijani)

Currently translated at 40.0% (1108 of 2770)
Merge remote-tracking branch 'origin/QA_4_2' into QA_4_2
Merge remote-tracking branch 'origin/QA_4_2'
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Translated using Weblate (French)

Currently translated at 99.7% (2828 of 2834)
Merge remote-tracking branch 'origin/master'
Remove plugin manager and observer classes

We don't really need the observer pattern, so let's simplify the code.

Signed-off-by: Michal Čihař <michal@cihar.com>
Merge remote-tracking branch 'origin/QA_4_2'
Translated using Weblate (French)

Currently translated at 100.0% (2834 of 2834)
Fixed cookie based login for installations without mcrypt

bug #4469

Signed-off-by: Michal Čihař <michal@cihar.com>
Translated using Weblate (Interlingua)

Currently translated at 54.5% (1512 of 2770)
Merge remote-tracking branch 'origin/QA_4_2' into QA_4_2
Fix comments

Signed-off-by: Michal Čihař <michal@cihar.com>
Merge remote-tracking branch 'origin/QA_4_2'
Translated using Weblate (Interlingua)

Currently translated at 55.1% (1563 of 2834)
Merge remote-tracking branch 'origin/master'
Merge pull request #1252 from nijel/remove-observer

Remove plugin manager and observer classes
PMA console, history and bookmarks.

Modified: resizer of navigation bar: whole-time-bind events removed.

Signed-off-by: Edward Cheng <c4150221@gmail.com>