Update nodegit to version 0.11.6 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

nodegit just published its new version 0.11.6, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of nodegit – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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GitHub Release

• Added Repository#checkoutRef PR #891
• Repository#createCommitOnHead no longer dies if the repo is empty PR #927
• Fixed memory leak in Patch#convenientFromDiff PR #930
• Generated files now have a header comment indicating that they are generated PR #924
• Fixed http parsing errors in Node 5.6 PR #931
• Fixed Tree#walk not returning the correct entries on end PR #929

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The new version differs by 23 commits .

• 53d38e9 Bump to 0.11.6
• 2caee3c Merge pull request #929 from nodegit/tree-walk-fix
• 0e64add Fix tests
• 14b2c60 Fix linter
• 99149c8 UseSetinTree#walkfor storing entries
• 7bdb380 Merge pull request #931 from nodegit/bump-http-parser
• 3875eb2 Update CI to use Node v5.6.x instead of v5.0.x
• 5b868ab Bumphttp-parserto 2.6.1
• 952b6b2 make sure test file name is correct on all OSs
• 123e2db make sure bothentryevent andendevent entries are what we expect
• 3d60252 fix tree.walk() and add test
• d33bd76 Merge pull request #924 from nodegit/comment-gen
• e4bf2f2 Merge pull request #930 from nodegit/let-my-patches-go
• 77287fe Merge pull request #927 from get-trucked/master
• 4a8cf95 Merge pull request #891 from AsoSunag/master

There are 23 commits in total. See the full diff.

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