Release version 0.8 to production

[aarmoa]

0.8.1

• Moved the configuration to use a secure or insecure connection inside the Network class. The AsyncClient's insecure parameter is no longer used for anything and will be removed in the future.
• Made the new load balanced bare-metal node the default one for mainnet (it is called lb). The legacy one (load balanced k8s node) is called lb_k8s

0.8

• Refactor Composer to be created with all the markets and tokens. The Composer now uses the real markets and tokens to convert human-readable values to chain format
• The Composer can still be instantiated without markets and tokens. When markets and tokens are not provided the Composer loads the required information from the Denoms used in previous versions
• Change in AsyncClient to be able to create Composer instances for the client network, markets and tokens
• Examples have been adapted to create Composer instances using the AsyncClient
• Added new nodes (bare-metal load balancing nodes) for mainnet and testnet
• Deprecated the kubernetes load balanced nodes for testnet
• Refactored the cookies management logic into a cookie assistant. Added the required logic to support the new cookies format for bare-metal load balanced nodes
• Removed class Client. The only supported now is the async version called AsyncClient.