\tuplet and \tupletSpan to replace \times and tupletSpannerDuration

input/regression/tuplet-properties.ly

-\version "2.17.6"
+\version "2.17.11"
 
 \header {
   texidoc = "Tuplet bracket formatting supports numerous options,
 for instance, bracketed (B) and non-bracketed (NB).
 "
 }
 
 \context Voice \relative c'' {
 
-  \times 2/3 { c'8 c,, c }
-  \times 2/3 { c'8 c'' c,, }
+  \tuplet 3/2 { c'8 c,, c }
+  \tuplet 3/2 { c'8 c'' c,, }
 
-  \times 2/3 { c8[^"NB" c c] }
+  \tuplet 3/2 { c8[^"NB" c c] }
 
-  \times 2/3 { c8^"B"  c[ c] }
-  \times 2/4 { r8_"B"  c,[ c'] r8 }
+  \tuplet 3/2 { c8^"B"  c[ c] }
+  \tuplet 4/2 { r8_"B"  c,[ c'] r8 }
 
   \override TupletBracket.bracket-visibility = #'if-no-beam··
-  \times 2/3 { c8[ c c] }
+  \tuplet 3/2 { c8[ c c] }
 
   \tupletUp
   \override TupletNumber.stencil = ##f
-  \times 2/3 { c8^""^""^"up, no digit" c[ c] }
+  \tuplet 3/2 { c8^""^""^"up, no digit" c[ c] }
   \revert TupletNumber.stencil
 
   \override TupletBracket.bracket-visibility = ##t
   \override TupletBracket.edge-height = #'(0 . 0)
   \override TupletBracket.shorten-pair = #'(2.0 . 2.0)
-  \times 4/6 { c_"shorter, no edges" f b  b f c} ·······
+  \tuplet 6/4 { c_"shorter, no edges" f b  b f c} ······
   \revert TupletBracket.edge-height
   \revert TupletBracket.shorten-pair
 
   \override TupletBracket.bracket-flare = #'(0.5 . 0.5)
-  \times 2/3 { b^""^""^"angled edges" b b }
+  \tuplet 3/2 { b^""^""^"angled edges" b b }
   \tupletNeutral
-  \times 2/3 { b b b }
+  \tuplet 3/2 { b b b }
 }