Add basic caching
#cache_key delegates to #object by default
Have to opt in with #cache_key
Clean up interface inconistency
Update railtie
Rebase against master
Remove commented code
ArraySerializer is also cached
use https for rubygems
Attemp to fix bad test
make sure to merge the original responder options into the given options to preserve location
Merge pull request #235 from tpitale/use-https

Use https for rubygems
Merge pull request #236 from tpitale/preserve-location

Rails actionpack responder preserves :location => nil, AM::S should too
Merge pull request #89 from twinturbo/caching

Serializers Cache JSON & Hashes
Add mutual association test
Merge pull request #237 from samuil/master

Add test for mutual relation
Fix inheritance issues, poison cache if attributes change
Merge pull request #238 from SamSaffron/fix

fix inheritance issues
Adding section for 0.8 to changelog
Move to CHANGELOG.md