* Move component container to GoogleUtilities.
This will allow non-Firebase SDKs to take advantage of the component
system. Note: Firebase Core will eventually move over to use this, but
more investigation is needed about how this can be done with the least
amount of churn for other SDKs.
* Fix dependency on Logger.
* Add CHANGELOG entry.
* Fix selector name.
* Move ComponentContainer subspec to new pod.
* Rename to GoogleUtilitiesComponents.
* Style, make public headers.
* Update travis with new name.
* Add project to if_changed.sh
* Review comments.
* Enabled static framework, changed homepage.
* Fix missing quote.
