Fake.IO.FileSystem 5.0.0-alpha016

BREAKING-CHANGE: Renew AssemblyInfo API - https://github.com/fsharp/FAKE/pull/1619 ENHANCEMENT: Add XML to FakeLib - https://github.com/fsharp/FAKE/pull/1641 ENHANCEMENT: Move Paket.Paket() over to use flag arguments - https://github.com/fsharp/FAKE/pull/1627 ENHANCEMENT: MSTest detail switch - https://github.com/fsharp/FAKE/pull/1625 API: StringBuilder functionality moved into a StringBuilder module ENHANCEMENT: Remove logfn from Compress and Extract - https://github.com/fsharp/FAKE/pull/1624 BUGFIX: Correctly determine the 64-bit "Program Files" folder - https://github.com/fsharp/FAKE/pull/1623 ENHANCEMENT: Bitbucket Environment variables - https://github.com/fsharp/FAKE/pull/1563 ENHANCEMENT: AppVeyor Environment variables - https://github.com/fsharp/FAKE/pull/1560 ENHANCEMENT: Change how npm.cmd is located in NpmHelper - https://github.com/fsharp/FAKE/pull/1629 NEW MODULE: Fake.Api.Slack - https://github.com/fsharp/FAKE/pull/1648 ENHANCEMENT: Add MSBuild binary logger support - https://github.com/fsharp/FAKE/pull/1649 ENHANCEMENT: Add BasePath support for NuGet pack - https://github.com/fsharp/FAKE/pull/1651 DOCS: fix code in FAKE5 modules doc - https://github.com/fsharp/FAKE/pull/1653/files ENHANCEMENT: Paket 5.5.0+: GNU-compatible Paket commands - https://github.com/fsharp/FAKE/pull/1655 BUGFIX: Target: update DoNothing signature - https://github.com/fsharp/FAKE/pull/1658 DOCS: Review discussion channels in contributing page - https://github.com/fsharp/FAKE/pull/1661 DOCS: Fixed the tooltip position and improved the styling in the api reference pages - https://github.com/fsharp/FAKE/pull/1663 NEW MODULE: Fake.Api.GitHub previously known as Octokit.fsx - https://github.com/fsharp/FAKE/pull/1667 DOCS: Fix menu on mobile - https://github.com/fsharp/FAKE/pull/1668 ENHANCEMENT: Add Paket helper to push specific files - https://github.com/fsharp/FAKE/pull/1665