Updated ember libraries

- Handlebars 1.0.0.beta6
- Ember 1.0-pre
- Ember data (built at b5660bdc25bfd03af95e3746696a13db07612d10)

Tests are broken
Updating ember.js

- Ember 1.0-pre is throwing some errors with the latest ember-data. Using an Ember build from 451ef3d6eed81616264eed7add1f18db14fce84d
Updated to use the new store.didSaveRecord.

These methods look redundant due to the lack of support for sideloading in tastypie. However, they might be useful for users to overwrite and customize the behavior of the store on save. These methods allow customization without modifying the success callback
Commenting tests also commentedd in RESTAdapter
Updated relationships methods

- HasMany and BelongsTo working. Relationships must be added with `set` in a statement diferent than `createRecord`
Missing self on deleteRecord
Testing new format in finds (query)
Basic CRUD Revision 7
Introducing the serializer

- _urlify function replaced with serialzer methods (write methods)
Cleaning some code
All methods working with the serializer (rev 7)
Updated revision in docs
Updated libraries for tests
Forgot to enable JSHint
Fixed error in didFindRecord
Updated documentation (namespace parameter)
Serializer in its own file
Typo in README
serverDomain can be used w/wo trailing slash
Replaced create with extend in docs