v0.7.0-alpha.2

Changelog

0250f61 feat(go): nested vendoring support, automated integration tests
23526c0 chore: Clean up merge cruft
2f83e6f Merge branch 'master' into wip/v0.7.0
607de55 fix(gradle): Improve gradle error logging
62ae510 fix(gradle): Fix gradle version detection
cfe95a5 Merge pull request #151 from joshuapetryk/josh/powershell
6213639 Add Powershell streams
ea187bb Fix syntax error with temp dir path join
9cc0989 fix(builders): fix go-bindata error
2c39f70 doc(license): add license header and link to pipdeptree

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