added set logic for node repetition, fixed serialization of update
Merge branch 'master' of https://github.com/cpottamus/btree_lab

* 'master' of https://github.com/cpottamus/btree_lab:
  arrrr
  minor insert error
  casts
  changes2
  changes
  moar overflows
  yay overflows
  fixed things
  debugz
  fixed init block issue
  fix error in lookupleaf
  move allocate out of loop
  changed bool from static to class member