Tree Re-Usage
minor changes
Merge branch 'treereusage'

* treereusage:
  Tree Re-Usage

Conflicts:
	Carcasum/core/game.cpp
Made MCTS tree re-usage optional.
Merge branch 'master' of github.com:TripleWhy/Carcasum

* 'master' of github.com:TripleWhy/Carcasum:
  PortionUtility fix
bugfixes
- mainly clone() bug