* Upgrade chain to v0.9.0-alpha4
* Update expected build_tags
* Update wasmd init contracts
* Update hackatom test contract
* Update CosmWasm message descriptions
* Make some test code more compact
* Pull out InstantiateOptions
* Add admin field to ContractInfo
* Allow instantiating with admin
* Remove some noise
* Add SigningCosmWasmClient.updateAdmin
* Create return type ChangeAdminResult
* Add SigningCosmWasmClient.clearAdmin
* Add SigningCosmWasmClient.migrate
* Move message type testers close to type
* Export MsgUpdateAdmin/isMsgUpdateAdmin
* Fix typo in privillage
* Update some test code
* Test hackatom result data
* Add compatibility table
* Update wasmd to v0.9.0-beta
* Upgrade test contracts