Addition of page type name label to composer settings dashboard page

Without this label there is no indication on this dashboard page of
which page type you are currently making composer config changes to.
Fix HtmlHelper extend Core

Fix HtmlHelper extend Core Class

- Change from extending core class to extended core class
Normalize the way the 'Other' attribute set is localized
Revert BlockController::getUniqueIdentifier()

Revert `BlockController::getUniqueIdentifier()`

`BlockController::getUniqueIdentifier()` is considered unnecessary

- Remove method from core
show message in interface config screen if hard coded

http://www.concrete5.org/developers/bugs/5-6-2/empty-interface-settings/
Merge branch 'Display-of-page-type-name-in-composer-settings-dashboard-page' of https://github.com/Mesuva/concrete5 into merge_1292_page_type_label_composer_settings

Conflicts:
	web/concrete/single_pages/dashboard/pages/types/composer.php
Merge pull request #1302 from mkly/merge_1292_page_type_label_composer_settings

Merge 1292 page type label composer settings
Merge pull request #1293 from mkly/fix_html_helper_core_inheritance

Fix HtmlHelper extend Core
Merge pull request #1295 from mlocati/patch-3

Normalize the way the 'Other' attribute set is localized
Merge pull request #1297 from mkly/revert_block_controller_unique_identifier

Revert BlockController::getUniqueIdentifier()
Merge pull request #1300 from Remo/patch-46

show message in interface config screen if hard coded
Simplify translatable string
Merge pull request #1303 from mlocati/patch-1

Simplify translatable string