add es3-safe-transpile step

currently:

```js
promise.finally -> promise[‘finally’]
promise.catch   -> promise[‘catch’]
a.default       -> a[‘default’]
// and some more..
```

see: https://github.com/stefanpenner/es3-safe-recast for more
Included broccoli-asset-rev for fingerprinting.
fixes the test message
Merge pull request #854 from twokul/master

fixes the test message
Merge pull request #814 from rickharrison/broccoli-asset-rev

Included broccoli-asset-rev for fingerprinting in EmberApp
Ember-Data Beta 8
Merge pull request #855 from bcardarella/bc-ember-beta-data-8

Ember-Data Beta 8
Merge pull request #823 from stefanpenner/es3-safe

add es3-safe-transpile step
Do not watch node_modules/ember-cli/lib/broccoli.

This changes prevents changes in ember-cli/lib/broccoli/ from triggering
a rebuild.
Merge pull request #857 from rjackson/do-not-watch-ember-cli-broccoli-dir

Do not watch node_modules/ember-cli/lib/broccoli.
MISC upgrades
Merge pull request #859 from stefanpenner/misc-upgrades

MISC upgrades
always display slow broccoli tree’s
Merge pull request #860 from stefanpenner/display-broccoli-trees

always display slow broccoli tree’s
refactor server tasks and related models to be more testing conducive.
Improve quality of tests and fix various bugs along the way.
WIP server + proxy tests (TOO TIRED)
invoke superConstructor from prototype
label mergeTree’s to help identify bottle necks
config can now be extracted from the project project
commandOption help is a factory.

cleanup tests accordingly