[jquery] upgrade jquery libaries
[jquery] correct data type to calculate image total height while using reflection height specified by class name
Revert "add code extensions", because this is not the purpose of jquery branch

This reverts commit 8401c612f591126ce2771ca3f4f8bb5b2d604ce3.
[jquery] give more explicit names to javascript libraries folders
[jquery] Merge commit 'upstream/master' into jquery

Conflicts:
	shared/global.php
[jquery] update css for jquery-ui (1.8.14)
[jquery] run once files to migrate to JQuery
[jquery] declare Yacs.current_item using function add_inline_js to put it after call of yacs.js
[jquery] correct names of minimized js libraries
[jquery] correct load of jquery-ui stylesheet
[jquery] correct libraries names to check their size
[master] CRLF replace by LF and space by tabs in tools/update_thumbs_url.php
[master] tabs in tools/update_thumbs_url (was not reccorded before)
[jquery] Merge branch 'master' into jquery

Conflicts:
	tools/update_thumbs_url.php
[fix] place localization string in  instead of
[fix] cascade the auto_publish option to sub-sections
[fix] use well-defined reference to compute notifications (instead of unitialized variable)
build activity dashboard in background (through cron)
allow to handle tables in simple pages
permit to get a copy of messages sent to page participants