bump to v0.8.1

bump to v0.8.0

consider collapsed dirs in visible tree size (fixes wagoodman#185)

prevent infinite render loop (fixes wagoodman#184)

gofmt fix

bump to v0.6.0 refs

version v0.5.0 bump

bump patch version in docs

fail on image not found without panic; add extra chmod case to test d…

…ockerfile

ensure tmp image is cleaned up on crash (addresses part of wagoodman#58)