Encode and decode models for cache read/write
misspellings, nil value check on read, missing parens
Spelling error, ActiveRecord::Assocation... to_a
Singleton fetch, spec fixes, model_fetch_spec
Address Comments

Main method names changed to fetch and fetch_associated. Accept blocks.
Only write if read from cache is nil.
Single fetch method
Spec fixes
single fetch method
fix typo
Address comments
Instance cache key class method, coder lambdas delegate to method
model fetch w/ attribute cache
rm whitespace
generate key with method
model fetch unit tests
clear cache before each spec
Don't write nils to cache
Merge pull request #36 from pathouse/encoded-associations

Encoded associations
eliminating rspec warnings regarding let statements within before(:all)
Friendly to slug lookups