New installers: 2018-02-20

* includes bugfix for ssl certificates that were not removed on
uninstall

gtk-nsis-pack/share/glib-2.0/schemas/gschema.dtd

@@ -1,4 +1,4 @@
-<!ELEMENT schemalist (schema|enum)* >
+<!ELEMENT schemalist (schema|enum|flags)* >
 <!ATTLIST schemalist gettext-domain CDATA #IMPLIED >
 
 <!ELEMENT schema (key|child|override)* >
@@ -47,7 +47,8 @@
 
 <!-- range is only allowed for keys with numeric type -->
 <!ELEMENT range EMPTY >
-<!-- min and max must be parseable as values of the key type and min < max -->
+<!-- min and max must be parseable as values of the key type and
+     min must be less than or equal to max -->
 <!ATTLIST range min CDATA #REQUIRED
                 max CDATA #REQUIRED >