Merge pull request #529 from spine/model-refresh-bug

Fix for #527
clean up some jasmine spy declarations
Add 5 specs for the new ajax configuration options
Added configuration options for AJAX method from @kuon. Closes #523
update changelog
minor updates to readme file
Fixed a bug where record instances become out of sync.
Saved a couple lines and updated the unit test
Merge branch 'relation-fetch' into dev