Prepare 1.5.0-beta1

Prepare 1.4.1

1.5.0-beta0

1.4.0

Merge pull request atom#10336 from atom/wl-backport-tabs-fix

Backport identical tab names fix

⬆️ autocomplete-plus to default to fuzzaldrin-plus

Merge branch 'stable' into beta

Conflicts:
	package.json

Merge pull request atom#10017 from atom/as-sha1-v8-cache

Cache v8 code by source file's SHA1

⬆️ command-palette

Merge pull request atom#9796 from atom/as-native-key-bindings

Use CommandRegistry to listen for native-key-bindings