simple minmax algorithm
improve minmax algorithm
use wait() and notify() for AI thread
Merge branch 'master' into ai
Revert "improve minmax algorithm"

This reverts commit 4848d76f5541942fbe08bc8a2bda151a271e843b.
update gitignore
update TODO
simple checkMate
avoid error when there's no move return
Merge branch 'master' into checkmate

Conflicts: solved
	src/control/ComputerMinmax.java
	src/model/Match.java
use MoveGenerator for checkmate
Merge branch 'ai' into checkmate

Conflicts: solved
	src/control/ComputerMinmax.java
	src/model/Match.java
clone Board to prevent paint delay problem
improve checkmate and checkfinish
add TODO
use cloneTable
Revert "hoa add file test"

This reverts commit 466656733f6d94ce2f79cb3bc321da146e307391.

Conflicts: solved
	test
...
switch to Activity & Place framework
rename package