remove versions from GHUnit and Nocilla deps
remove object cache
update podspec
rename object getting method
refactor object manager uses classes instead of mappings
refactor mapping determination into object mapper
cleanup to remove traces of RKObjectMappingProvider
update RestKit
adjust object mappings for RestKit 0.20
implement mapping management for SPObjectMappingProvider
fix deprecated dictionary initialization
add mappingsDictionary to mapping provider
fix SPURLConnection param extraction

intermediate state. SQUASH LATER
fix query parameter extraction and deduplication
fix serialization mapping type
fix product type department mapping tests
fix product serialization test
fix serialization key path
fix basket serialization test
fix object mapper tests