Add implicit transformation of NSURLs to JSON
Fix README
Add implicit transformer hooks for primitives
Explicitly cast to less precise type
Implicitly transform BOOLs to CFBooleanRef
Fix capitalization
Re-capitalize like it's 1999
WS
Document NSURLJSONTransformer
Rename to -transformerForModelPropertiesOfObjCType:
Improve documentation
Cache value transformers on the property key
Merge branch '2.0-development' into implicit-transformers

Conflicts:
	Mantle/MTLJSONAdapter.h
	Mantle/MTLJSONAdapter.m
Add implicit transformers to MTLManagedObjectAdapter
Extract property inspection into category
Remove unneeded imports
Pluralize valueTransformersByPropertyKey
Document +NSURLEntityAttributeTransformer
Make class based transformers instrance methods
Mention URL transformers in -transformerForModelPropertiesOfClass: