SVG Travis build image

Replaced png Travis build image with svg.
Merge pull request #1735 from quaertym/patch-11

SVG Travis build image
Adds a util function

Hides the internals of how we boot up `ember-cli`.
Makes it easy to swap for another loader.
Merge pull request #1740 from twokul/instantiate-util

Adds a util function
Throw an error if an Addon does not specify a name.

We use a generated name when an addon just uses the default
implementation (meaning it doesn't need an index.js), but if you export
an object that does not contain `name` you get very weird and bizarre
errors (took me a bit to track it down).
Revert "Adds a util function"
Merge pull request #1743 from stefanpenner/revert-1740-instantiate-util

Revert "Adds a util function"
Making use of Core object
Merge pull request #1744 from twokul/command-core-object

Making use of Core object
[Bugfix nicething] testem doesn’t like custom base url’s so lets give a good default.
Do not redefine passed in argument

Causes deopt in v8.
Merge pull request #1753 from twokul/argument-redefine

Do not redefine passed in argument
Merge pull request #1748 from stefanpenner/happy-testem-with-base-url

[Bugfix nicething] testem doesn’t like custom base url’s so lets give a ...
Merge pull request #1741 from rwjblue/throw-an-error-if-name-is-not-specified

Throw an error if an Addon does not specify a name.
Adds tests to ensure that all pre-1.0 package versions are locked
Merge pull request #1754 from brzpegasus/version-lock

Adds tests to ensure that all pre-1.0 package versions are locked
Extracts CoreObject into a separate library.

This is a first step towards the direction of splitting `ember-cli` into
micro libraries. `CoreObject` now lives under
[stefanpenner/core_object](https://github.com/stefanpenner/core_object).
Merge pull request #1752 from twokul/core-object

Extracts CoreObject into a separate library.