Replaced xcopy with robocopy
:memo: adding an emoji for upgrading deps
Don't fail create-installer if ATOM_ACCESS_TOKEN isn't set

This lets users create one-off installers locally without having to download
every other release to create deltas.
Merge pull request #3828 from zigal/patch-1

:memo: adding an emoji for upgrading deps
:memo: Add missing :
:memo: deps -> dependencies
Merge pull request #3822 from suda/master

Replaced xcopy with robocopy
Use -> instead of =>
Upgrade to tree-view@0.131
Upgrade to incompatible-packages@0.10
:arrow_up: Upgrade to grammar-selector@0.35
Twerk error message
Merge pull request #3836 from atom/dont-fail-if-no-deltas

Don't fail create-installer if ATOM_ACCESS_TOKEN isn't set
Upgrade to settings-view@0.152
Prepare 0.138
Wire initial module cache
:memo: Add a couple notes
Add initial cache lookup method
Ignore native modules since they are already cached
Do hasOwnProperty check first