Add Squirrel.Windows 0.4.92
Create the first hack at an installer spec
Create a task which builds an installer
Add create-installer to default tasks
How embarassing
Let's not create an installer unless asked, it takes foreeeeevvvverr
Merge remote-tracking branch 'origin/master' into squirrel-installer

Conflicts:
	build/Gruntfile.coffee
Populate atom.nuspec with the current Atom version
Sign the installer too
Use ERB templates from Underscore-Plus
CI version numbers are Magical(tm)
Start on Workspace::getView
Use atom.workspace.getView to construct WorkspaceViews

It returns the root DOM node of the workspace. Eventually this will
be a custom element but for now it’s just a DOM node with a
__spacePenView reference on it.
Use Workspace::getView to build PaneContainerView
Extract a ViewRegistry that can be shared amongst Workspace objects
Construct PaneAxisViews and PaneViews via ViewRegistry
Use the ViewRegistry to construct pane item views
Upgrade background-tips to fix spec failure
Isolate ViewRegistry specs
Use view providers to build views if a matching provider is available