[#9364] Allow Unicode chars via modX::sanitizeString()

Update core/model/modx/modx.class.php

allow unicode characters additionally
(cherry picked from commit f862ca4f1cad549852fa7eed26e69d5d59c065d0)
[#9197] Load RTE for SymLinks in manager

Update manager/controllers/default/resource/symlink/update.class.php

Symlinks also should load RTE because you can have template variables assigned with this feature. Otherwise it will be a normal textarea.
(cherry picked from commit c4729ebb01d930dbfbb512e1319ad023d1c34133)
[#9359] Report errors about unpublishing site_start to user
Merge branch 'release-2.2' into develop

* release-2.2:
  [#9359] Report errors about unpublishing site_start to user
  [#9197] Load RTE for SymLinks in manager
  [#9364] Allow Unicode chars via modX::sanitizeString()

Conflicts:
	core/docs/changelog.txt