Reorder changes to put major 1.2 features first

Author: afs

spec/index.html

@@ -12229,19 +12229,19 @@ Changes between SPARQL 1.1 Query Language and SPARQL 1.2 Query Language
         
             Normative changes:
             
-                Remove concepts of plain and simple literals, in favor of explicit mentions of `xsd:string`
                 Update grammar for triple terms, reifiers, reified triples, annotation syntax, and triple term functions
                   in 
-                Update grammar for literal base direction syntax
-                Migrate XML Schema references to 1.1
-                Update references to XPath from 2.0 to 3.1
                 Add functions related to triple terms to
                   :
                   `TRIPLE`, `isTRIPLE`, `SUBJECT`, `PREDICATE`, `OBJECT`.
+                Update grammar for literal base direction syntax
                 Add functions related to 
                   language tag and
                   base direction:
                   `LANGDIR`, `hasLANG`, hasLANGDIR, and `STRLANGDIR`
+                Remove concepts of plain and simple literals, in favor of explicit mentions of `xsd:string`
+                Migrate XML Schema references to 1.1
+                Update references to XPath from 2.0 to 3.1