Ensure that we're testing the global Promise object for noncompliance. From #258
A more reliable method to get the global object
Adding failing tests for #261.
Separating out these Set tests so they can all run when one fails.
Fix for #261
Merge pull request #262 from ljharb/array_from_changes

Array.from changes
Merge pull request #259 from ljharb/get_global_reliably

A more reliable method to get the global object
v0.13.0
Merge remote-tracking branch 'remotes/origin-parent/master'

Conflicts:
	es6-shim.js