Fully Remove Node 10

[jason-fox]

With the recent release, Node 10 can be fully removed for the next release. No rush to merge this, just raising it whilst I remember to do it.

[coveralls]

Pull Request Test Coverage Report for Build 596633658

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.217%

---

Totals
Change from base Build 577900909:	0.0%
Covered Lines:	496
Relevant Lines:	612

---

💛 - Coveralls

[fgalan]

This repository doesn't have deprecated.md file so annotating the last version with v10 is not possible. Alternatives:

• Add the deprecated.md now (in this PR)
• Ignore this and merge the PR anyway

What do you think @jason-fox ?

[jason-fox]

My preference would be to ignore and merge

[coveralls]

Pull Request Test Coverage Report for Build 596633658

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.217%

---

Totals
Change from base Build 577900909:	0.0%
Covered Lines:	496
Relevant Lines:	612

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 580743262

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.217%

---

Totals
Change from base Build 577900909:	0.0%
Covered Lines:	496
Relevant Lines:	612

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 580743262

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.217%

---

Totals
Change from base Build 577900909:	0.0%
Covered Lines:	496
Relevant Lines:	612

---

💛 - Coveralls