Merge branch 'next' into issue-456

This was to pick up the fix for #395, PR #564, and bumps the version to
5.5.30...

src/lexer.c

@@ -3736,6 +3736,7 @@ static tmbstr  ParseAttribute( TidyDocImpl* doc, Bool *isempty,
             {
                 /* Not '/>' - put it back */
                 TY_(UngetChar)(c, doc->docIn);
+                c = '/';  /* retore original char */
             }
         }
 

version.txt

@@ -1,2 +1,2 @@
-5.5.29
-2017.05.27
+5.5.30
+2017.05.29