Merge branch 'production'

# Conflicts:
#	app/src/main/java/io/horizontalsystems/ethereumkit/sample/MainViewModel.kt
#	app/src/main/java/io/horizontalsystems/ethereumkit/sample/core/Erc20Adapter.kt
#	app/src/main/java/io/horizontalsystems/ethereumkit/sample/core/EthereumAdapter.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/EthereumKit.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/ApiBlockchain.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/ApiProvider.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/Interfaces.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/storage/KitDatabase.kt
#	ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/storage/RoomStorage.kt
#	ethereumkit/src/test/java/io/horizontalsystems/ethereumkit/EthereumKitTest.kt

Author: omurovch