[Scutigena-code] heapsort.tcl

[miguel s. <mi...@ut...>]

attached an improved heapsort.tcl (40% faster here):
  - uses lists, not arrays
  - inlines the result of assignments (readability <<)
  - avoids some buglets in the engine (like && being slower than nested)
  - replaces bitshift with arithmetic ops (readability >>)

Miguel