out of gas on migration

[chaseadam]

newer solidity versions have out of gas issues deploying our sample contracts.

Specify the solidity version in the truffle-config.js

  compilers: {
    solc: {
      version: "0.5.0",
    },
  }

from @cruz:

@adam.chasen I believe in one of the more recent versions of truffle, we bumped the solidity version to 0.5.8 (which defaults the evmVersion to petersburg and would probably be the cause of outputing diff bytecode) (edited)

Note: truffle version is deprecated and no longer returns correct version information for solidity. Need to look at compile output to see which solidity truffle uses.

reference from public truffle channel: https://consensys.slack.com/archives/C1D2T7NLC/p1561670155102100