DOM: Added $().children() and $().reverse()

(integrated from trunk branch change fc93b56 by Nathan Rijksen <n.rijksen@gmail.com>)
History: Added get_num_visits to editorhistory

(integrated from trunk branch change 417d3b6 by Nathan Rijksen <n.rijksen@gmail.com>)
Commando: Added sorting and weighing of results

(integrated from trunk branch change ed3a8b4 by Nathan Rijksen <n.rijksen@gmail.com>)