Set version to 0.0.4 (dev branch)
Set version to 0.0.4 (dev branch)

Trailing digits in the dev version have the format YYYYMMDDhhmm:
`Y: year  M: month  D: day  h: hour (Pacific time)  m: minute`

This will only appear if installing directly from Github; version will be set to non-dev value prior to actual release.
quantumlib/qsim,quantumlib/qsim,quantumlib/qsim,quantumlib/qsim