Publish builds to S3.

This will publish builds to S3 to the following URL's:

```
<S3_FILE_PREFIX>/ember-validations.js
<S3_FILE_PREFIX>/ember-validations.prod.js
<S3_FILE_PREFIX>/ember-validations.min.js
<S3_FILE_PREFIX>/daily/<YYYYMMDD>/ember-validations.js
<S3_FILE_PREFIX>/daily/<YYYYMMDD>/ember-validations.prod.js
<S3_FILE_PREFIX>/daily/<YYYYMMDD>/ember-validations.min.js
<S3_FILE_PREFIX>/shas/<SHA>/ember-validations.js
<S3_FILE_PREFIX>/shas/<SHA>/ember-validations.prod.js
<S3_FILE_PREFIX>/shas/<SHA>/ember-validations.min.js
```

The following secure environment values need to be added to
`.travis.yml`:

* S3_ACCESS_KEY_ID
* S3_SECRET_ACCESS_KEY
* S3_BUCKET_NAME - Pre-populated to `builds.dockyard.com`
* S3_FILE_PREFIX - Pre-populated to `ember-validations`
Merge pull request #82 from rjackson/deploy-to-s3

Publish builds to S3.
S3 creds
Update README.md
Update README.md
adds i18n support
adds a test
Fix typo

* 'Validaion' to 'Validation'
Merge pull request #87 from dockyard/romina-typo

Fix typo
Added URL validator.
Merge pull request #91 from nojacko/url-validator

Added URL validator.
Set default numericality message when messages is defined, but messages.numericality is not.
Possible correction sans hack.

I believe the intent of the validation in the test is to say "this array
controller is valid when all its children are valid".  I believe this change
achieves those semantics, although please keep in mind that I have not studied
the implementation of ember-validations so this approach should only be taken if
it makes sense to someone who understands the internals of ember-validations.
Replace Object.keys with the polyfilled Ember.keys
Merge pull request #105 from bradleypriest/emberkeys

Replace Object.keys with the polyfilled Ember.keys
Merge branch 'romina-typo' of github.com:hjdivad/ember-validations into hjdivad-romina-typo
Cleaned up ext

ArrayController extension no longer necessary
Merge pull request #106 from dockyard/bc-clean-up-ext

Cleaned up ext
Merge pull request #83 from fsmanuel/add_i18n_support

adds i18n support
Updated CHANGELOG