Add initial Windows installer task
Remove installer code now handled by grunt plugin
Load installer task
:arrow_up: grunt-atom-shell-installer@0.4
Use root app dir
Add authors
Add community
:arrow_up: grunt-atom-shell-installer@0.5
:arrow_up: grunt-atom-shell-installer@0.6
Sign AtomSetup.exe
Use buildDir to build setup exe path
Merge pull request #4170 from atom/ks-use-grunt-installer-plugin

Use Grunt plugin to build Windows installer