Fixed issue with root element not existing before setting up dispatchers
Fixed issue with 'append' deprecation warning not being the last in the stack
Merge pull request #93 from slindberg/root-element-add-order

Root element auto-add ordering
Fixing an issue related to the ES6 resolver. `isolated-container` should call `resolver.normalize(fullName)` before attempting to lookup and inject `needs` values into the container.
Merge pull request #89 from workmanw/isolated-container-normalize-needs

`isolated-container` should  call `resolver.normalize(fullName)` when resolving needs values.
Introduce test-framework-agnostic TestModuleXXX classes

TestModule encapsulates the logic formerly in moduleFor()
TestModuleForModel encapsulates the logic formerly in moduleForModel()
TestModuleForComponent encapsulates the logic formerly in moduleForComponent()
Separate ember-test-helpers directory / namespace
Refactor TestModule to use more focused methods
Fix ‘moduleFor with empty DOM’ test to use custom setup

`moduleFor` no longer accepts a `delegate` function as an arg
Export isolatedContainer from ember-test-helpers
Move buildContextVariables to be method of TestModule
fixup buildContextVariables
Globalize test helpers when globalizing ember-qunit
Simplify setup/teardown by introducing invokeSteps
Teardown containerView via module.teardownSteps
Fix buildContextVariables
Temporarily comment out failing model test

`model.save()` promise is never fulfilled.

This is also broken on master.