Update to newest vinyl for gulp 4 support

[phated]

@UltCombo can you get this merged and published right away? A lot of people are having trouble with the new alpha of gulp 4 due to outdated vinyl deps.

[erikkemperman]

Need to check why tests are failing, but +1 for the vinyl upgrade!

[namoscato]

It looks like the AppVeyor failure is caused by the latest version of npm@5.6.0 running on an older version of Node v0.12. While I did not test this on Windows, I was able to replicate the issue on my MacBook, and the issue was resolved by downgrading to npm@2.15.11, which is bundled with Node v0.12.

I am unfamiliar with AppVeyor, but we might look at removing:

gulp-watch/appveyor.yml

Line 12 in 608c7aa

- npm -g install npm@latest

The Travis CI ENOSPC failures seem to point to resource constraints and relate to gulpjs/gulp#217 / stackoverflow.com/q/16748737.

[phated]

@namoscato We've been using npm@^3 for gulp projects.

[phated]

@floatdrop @UltCombo any word on when this will get updated?

[floatdrop]

@phated we need to check why ENOSPC happens – tests are not watching so many files. (just started build again, and it's passed – may be travis wierd bug)

[floatdrop]

Gulp.js is still on 3.9.1 version, so we can publish updated vinyl only on latest tag (as gulp does).

[phated]

Vinyl 2.1 is released as latest and is backwards compatible. This needs to get updated because the gulp 4 release is only a few days away.

[floatdrop]

Vinyl 2.1 is released as latest and is backwards compatible. This needs to get updated because the gulp 4 release is only a few days away.

@phated I understand that, but still this should be released as major bump or with custom tags. I'm preferring bumping major versions for this. @UltCombo any thoughts on this?

[phated]

I think bumping major is good. But you probably want to wait for the upcoming chokidar v2 then. I'll be working on that tomorrow.

[phated]

@floatdrop chokidar bumped to 2.0 the other day. Want to get that + vinyl 2.1 merged into master and major bump?

[phated]

Ping again @floatdrop