Merge pull request #9 from ReactiveRaven/master

Feature request: Add Bower json file
Enable CORS support via $http.defaults
Implement issues #13 and #14

CouchDB.queryActive and CouchDB.queryMore()
Update README.md
Guestbook-Sample now for CORS enabled IrisCouch
Update README.md
Update bower.json
Callback for multiple attachments
Minor reformatting
Explicit attachMulti() on CouchDoc
Allow $http configuration for CouchDoc.save

This commit allows additional configuration parameters to be sent for the $http request in `CouchDoc.save`.  I need to do this in order to work around angular/angular.js#1463
Record update_seq when available.

Useful if one is then going to use the _changes API to keep data live.