Add followRedirect as a valid request option

[bsyk]

Sometimes you want the browser to receive the redirect rather than the proxy following it.
This option allows the 'followRedirect' option to be passed through to the underlying request.

[coveralls]

Coverage remained the same at 92.571% when pulling 180d3b4 on bsyk:master into e13778b on 4front:master.

[coveralls]

Coverage remained the same at 92.571% when pulling 8ff883a on bsyk:master into e13778b on 4front:master.

[coveralls]

Pull Request Test Coverage Report for Build 83

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.339%

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Totals
Change from base Build 81:	0.0%
Covered Lines:	167
Relevant Lines:	180

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💛 - Coveralls

[dvonlehman]

👍

[dvonlehman]

Published to npm as version 2.2.2.

[tandrewnichols]

This option needs to be added to the README. I found it pretty quickly here by searching issues, but I initially thought it wasn't supported.