* web3 flask + read proposal
* tests
* use build/contracts indtead of build/abi
* fail if endpoint not set
* batched calls
* add web3 read to GET proposal(s) endpoints
* basic integration of BE crowdFund data into FE
* handle dead contracts & omit on FE
* allow web3-free viewing & move crowdFundContract out of redux store
* upgrade flask-yolo2API to 0.2.6
* MetaMaskRequiredButton + use it in CampaignBlock
* convert to tuples
* farewell tuples
* flter dead proposals on BE
* give test_proposal_funded deadline more time