Even more thinking.
Merge branch 'master' into gh-pages

Conflicts:
	js/AI/AI.js
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Used more simple approach for heuristics.
Feature: Adjustable heuristics.
Adjusted tuning values to only consider number of merges in the beginning.
Added explanatory text.