Adding web-app flag

[aalykiot]

I'm re-opening the PR from the new branch 'web-app-flag'. Still WIP but the linting error is fixed and I also updated the docs, so the only thing left is writing the tests :)

[coveralls]

Pull Request Test Coverage Report for Build 1050

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 96.659%

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Totals
Change from base Build 614:	0.01%
Covered Lines:	637
Relevant Lines:	662

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💛 - Coveralls

[lholmquist]

looking pretty good, and for the test, you should be able to copy something from https://github.com/nodeshift/nodeshift/blob/master/test/build-strategy-test.js or https://github.com/nodeshift/nodeshift/blob/master/test/definitions-tests/build-strategy-test.js which just realized should be merged together. I'll create another issue for that

[aalykiot]

@lholmquist I finished writing the tests (It's just a single test though). I think the PR is ready for a final review and merge :)

[lholmquist]

👍

[lholmquist]

@alexalikiotis since we merged #397, the test file you added your tests to doesn't exist anymore :) can you rebase this PR with master.

[aalykiot]

@lholmquist Done!