v4.0.0-alpha.2

Breaking

• Replace vinyl-fs watch/gaze with chokidar (2cd0e1e)
• Only support tasks that are functions in gulp.watch (1d70cfb)
• Remove array & string task support from gulp.watch (b085e95)

Fix

• Set chokidar option ignoreIntial: true by default (355fc4e)
• Throw better error when watch parameters are invalid (409f19a) - Closes #1002

New

• Expose vfs.symlink API on gulp (6c46116)

Update

• Add test to make sure no functions are kicked off when they should not (bc352dd)
• Use unpublished vinyl-fs version (cac9a8a)

Docs

• Update "split tasks" recipe to use gulp-hub (f7e7d4c)
• Align API with undertaker docs (0f3151e)
• Improve gulp.watch API with Chokidar specifics (263eeea)
• Add gulp.registry API & examples (3f843b8)
• Improve API references (be2df06)
• Add example of -T/--tasks and --tasks-simple (c1012cd)
• Add gulp.tree API & examples (8aa1022)
• Add recipe for running shell commands with child_process or gulp-exec (98b9504)
• Update "clean" task in example for "del" syntax change (cacc173)
• Add note about opt-in symlink following (c4b6922)
• Mention .description property & add usage examples (ad627e6)
• Outline using named functions and when to use gulp.task (1abb5ed)
• Improve incremental build example & add gulp.lastRun API (d942cf5)
• Added allowEmpty option for gulp.src (8806326)
• Add gulp.series/gulp.parallel APIs, update gulp.task API & vinyl-fs options (0ac0a0e)
• Improve changelog (87e9cb6)

Upgrade

• Update undertaker (7e67502)
• Update chokidar (88b6c33)
• Update vinyl-fs & mocha-lcov-reporter (32abfe5)
• Update undertaker (646044b)
• Update undertaker & vinyl-fs (2e4809b)
• Update undertaker (96febce)