Refactor
* No more decorators, but rather types.AntiHandler
* No more handlers, but rather types.MsgHandler
* Ability to pass "stores" in NewXYZHandler()
* Coins live in types, and Accounts have coins
* Coinstore -> bank
* wip: tests and fixes for kvstore iteration
* update for latest tmlibs
* types compiles
* x/coin almost compiles
* x/coin: move things out of the way so it builds
* rebase fixes
* update glide
* add test for ChainDecorators