monitor time on transactions
reset old stuff
every model manages its collection
count stones liberties with Collection index
count liberties on Collection system
stone concat helper
feed liberties param if exists
uncomment stonegroup liberties test (currently not passing)
stonegroup liberties test work again
test if a group touches a stone
old algorithm tests are passing with new one
use add instead of merge
GameStore become GameCache (store for db, cache for redis)
Merge branch 'monitor-transaction' into new-putstone-algorithm

Conflicts:
	lib/model/transaction.js
	test/gamecache.test.js
use winston instead of direct console
bin for redis game extraction as fixture file
make sure stone is not attached to another colored group
socket pass trough mei logger
get rid of nasty ([]) initialisations
mei improvements