[fixes #231] prefer project local CLI version
tidyup help output
print version on boot.
remove indent from output
re-align architecture.MD with project
Merge pull request #358 from stefanpenner/updatee-arch

re-align architecture.MD with project
re-align architecture.MD with project
fixup UI related test failures
Merge pull request #359 from stefanpenner/fixup-test-failures

Fixup test failures
update change log to include that ember now attempts to use the version of ember-cli relative to the project.
Update ARCHITECTURE.md