MDL-36966 Assignment: Bug - Student submission appears graded by themselves.

Fix a bug when a student editing his submission after it has been graded, it changes the 'graded by' details to the student's name in the feeback summary
MDL-35569 AJAX Move auto-submitting selects to separate YUI module

sam note: Some changes removed from 2.4 version (deprecation warning, lib/upgrade.txt).
MDL-35653 - mod/wiki: Force format now lets users edit wiki pages.

Thanks to Tõnis Tartes for part of this solution.

When force format was selected in the options, trying to view the
wiki would redirect to the front page with a message saying that
you do not have permission to edit this page. Students had no way
of viewing any entries or creating the first page.

When in force format it skips a page , which would be considered
uncessary for students, but this means that the group id is not set
and this is what is causing most of the problems.

I also have included a check to see if the title is default and whether
the user has permission to view all groups. In these situations the
intermediate page is displayed.
MDL-36934 Only set the autosubmit class on selects when required

The url_select class can optionally show a button (much like the non-JS
fallback). In this case, the autosubmit nature of the form shouldn't be
enforced and it should only submit on the button.
MDL-35833 - Blocks - Adding alt and title attributes to the docked-block panel close button
MDL-37233 do not show skype status icon on https sites

Funny that the same company that implemented the IE security warnings is unable to set up SSL on the Skype status server…
MDL-37283 import tinymce spellchecker 2.0.6.1
Merge branch 'wip-MDL-35653-MOODLE_23_STABLE' of git://github.com/abgreeve/moodle into MOODLE_23_STABLE
Merge branch 'MDL-36966-23' of git://github.com/damyon/moodle into MOODLE_23_STABLE
Merge branch 'wip-MDL-35833-stable23' of git://github.com/phalacee/moodle into MOODLE_23_STABLE
MDL-37290 course: fixed up navbar when editing categories
Merge branch 'w51_MDL-37283_m23_spell' of git://github.com/skodak/moodle into MOODLE_23_STABLE
Merge branch 'wip-MDL-37290-m23' of git://github.com/samhemelryk/moodle into MOODLE_23_STABLE
Merge branch 'w51_MDL-37233_m23_skype' of git://github.com/skodak/moodle into MOODLE_23_STABLE
Merge branch 'MDL-35569-m23' of git://github.com/sammarshallou/moodle into MOODLE_23_STABLE
weekly release 2.3.3+
Merge branch 'MOODLE_23_STABLE' into NMC_MOODLE_23_STABLE