v4.0.0-alpha.2
Breaking: Replace vinyl-fs watch/gaze with chokidar
Docs: Integrate pump documentation from gulp-uglify (closes #1791)
Docs: Update urls to https (#2067)
Docs: Align API with undertaker docs
Docs: Add example of -T/--tasks and --tasks-simple
Docs: Add gulp.series/gulp.parallel APIs, update gulp.task API & vinyl-fs options