Make combined-reporter a built-in reporter
Publish Leadfoot deprecation messages in Intern

Leadfoot and Intern use different dojo's, so messages have to be pulled
from one to the other.
Merge branch 'master' into geezer
Add custom Dojo node loader.

The Dojo 1.9.3 loader always resolves node dependencies relateive to the
original Dojo loader, which means that for self tests the
Intern-under-test will be loading node modules relative to the testing
Intern. The custom loader resolves dependencies relative to the
module requesting the dependency.