Since we have issues with Tzstats & node 8 we might use this fallback instead.
To query operations by address we rely on https://mystique.tzkt.io/ which seems to be fine with node 8, but unfortunately it does only return Transaction and Delegation operations, so as a consequence we won't have originated accounts. Mystique seems also to return data with some missing informations (e.g. blockhash ...), please refer to: https://mystique.tzkt.io/v3/operations/tz1iJuhk6v4A6wPbi1uLNy33ZuKu5JgHN1ye
We use the main RPC node but this would work with any RPC node it only needs TEZOS_RPC_ENDPOINT to be override through the wallet configuration.

DRAFT: Currently this PR will remain draft for 2 reasons:

• Wait for Tezos: patch code to support Babylon update #359 to be merged,
• Check if, as a fallback solution, it is ok to not have originated accounts and missing informations (missing blockhash will probably need some tweaks from our side too)