Fix #2422 - Clarify docs about changed attributes.
Merge pull request #2423 from braddunbar/model-changed

Fix #2422 - Clarify docs about changed attributes.
Don't accept urlRoot from Model and url from Collection
Remove the redundant documentation bits
Merge pull request #2426 from gsamokovarov/no-url-no-urlroot

Don't accept urlRoot from Model and url from Collection
fixed documentation anchor
Merge pull request #2429 from zyzniewski/master

Fixed documentation anchor for Collection#fetch
Fixed tiny typo in FAQ
Merge pull request #2433 from CSNW/faq-typo

Fixed tiny typo in FAQ
Add license to package.json
Merge pull request #2435 from theoreticaLee/master

Add backbone's license info to package.json
Clarification on optional parameters and trailing slashes in routes documentation
Merge pull request #2445 from alexmcpherson/master

Documentation paragraph for a common misconception about routes with trailing slashes.
adding missing comma
Fix #2438 - Indicate shallow copying.
Fix #2446 `save` should always `set` with `validate: true` by default
Don't validate twice in
very minor code formatting
Remove leftover attachable url documentation
Merge pull request #2454 from gsamokovarov/remove-leftover-url-docs

Remove leftover attachable url documentation