Drop dependency on deprecated gulp-util

[anwarhahjjeffersongeorge]

Replaces

• gulp-util.log() with fancy-log.log(),
• gulp-util.beep with beeper(), and
• gulp-utiil.log(gulp-util.colors.red()) with fancy-log.error()

See gulpjs/gulp#2065

[coveralls]

Coverage remained the same at 100.0% when pulling 60ed46c on anwarhahjjeffersongeorge:master into 4787274 on mlucool:master.

[mlucool]

Thanks for your contribution!

[paulsmirnov]

Note that fancy-log.error() writes to stderr instead of stdout, it could corrupt the log like it did in my project.

[FizzyGalacticus]

Can we expect this to be pushed to npm anytime soon?

[mlucool]

I'll publish in the next week. I was hoping to avoid publishing without any new features to offer then forgot about this change

[mlucool]

Published with more upgrades and dropping support for unsupported versions of node