docs: function(commonStrategy) {
   			var i = this.strategies.indexOf(commonStrategy);
   			if(i >= 0) {
   				this.strategies.splice(i, 1);
  
   				var cat = this.categories[commonStrategy.category];
   				if(cat) {
   					var cI = cat.indexOf(commonStrategy);
   					if(cI >= 0) cat.splice(cI, 1);
   				}
   				return true;
   			}
   			return false;
   		}