Revert "Just pressing keys"

This reverts commit 0117a79dd902dd8454187ff549a0dd2675dd413a.
Revert "Build harder?"

This reverts commit 282bb092ed8ad4226d0374078bca2fcf8f80a7c2.
Revert "Share the MantleTestService build scheme"

This reverts commit f71f8381e5bee1a0096de8aff7c93a23d8b91b48.
Revert "Add a test XPC service to Mantle Mac Tests target"

This reverts commit c3a75e17070453957f36139434804a42d12d8768.

Conflicts:
	Mantle.xcodeproj/project.pbxproj