patch changes & fixes from master branch

remove VERSION file
update rules
add 33 migration
add get_version_for_release.sh script
update schema
add use_character_sample_skills

system/templates/rules.html.twig

@@ -1,8 +1,2 @@
-{% if constant('PAGE') == 'rules' %}
 <b>{{ config.lua.serverName }} Rules</b><br/>
-<textarea rows="25" wrap="physical" cols="70" readonly="true">
-{% endif %}
-{{ getCustomPage('rules_on_the_page') }}
-{% if constant('PAGE') == 'rules' %}
-	</textarea>
-{% endif %}
+{{ getCustomPage('rules_on_the_page') | nl2br }}