Adds FusionDirectoryError base class and one child class for check
 failures.
Use this new class for IntAttribute as first test.
Build HTML dialog from error class using attribute data.

issue #6071

issue #6069

Move styling to CSS theme
Move HTML to smarty template
Render everything in one pass
Cleaned up some variable and function names
Add some strict typing

Should render and behave the same as before

issue #5955

Basic fixes like identation

issue #5955

issue #5956

Revert "Merge branch '5907-password-recover-does-not-escape-fields-in-error-messages' into '1.4-dev'"

This reverts merge request !420

We’ll need to check there is no error message which actually needs HTML.

issue #5907

Move this trailing comment on the previous empty line

Signed-off-by: Benoit Mortier <benoit.mortier@opensides.be>

Signed-off-by: Mortier Benoit <benoit.mortier@opensides.be>

Signed-off-by: Mortier Benoit <benoit.mortier@opensides.be>

Conflicts:
	html/index.php
	html/main.php
	html/setup.php
	html/themes/default/tabs.css
	ihtml/themes/default/headers.tpl
	ihtml/themes/default/msg_dialog.tpl
	ihtml/themes/default/simple-filter.tpl
	ihtml/themes/default/simple-remove.tpl
	include/class_acl.inc
	include/class_divSelectBox.inc
	include/class_divlist.inc
	include/class_sortableListing.inc
	include/class_tabs.inc
	include/functions_debug.inc
	include/php_setup.inc
	include/simpleplugin/systemSelect/systemSelect-filter.tpl
	plugins/admin/departments/class_department.inc
	plugins/admin/departments/country.tpl
	plugins/admin/departments/dcObject.tpl
	plugins/admin/departments/dep-filter.tpl
	plugins/admin/departments/dep_move_confirm.tpl
	plugins/admin/departments/domain.tpl
	plugins/admin/departments/generic.tpl
	plugins/admin/departments/locality.tpl
	plugins/admin/departments/organization.tpl
	plugins/admin/departments/remove.tpl
	plugins/admin/ogroups/class_ogroup.inc
	plugins/admin/ogroups/ogroup-filter.tpl