updated date on caching
added a document about caching
updated to latest packages and fixed up linter.
Merge branch 'feature/multi-storage-engine'
added ability to specify a provider for people using multiple providers.
added complex / date policies
adding init functionality for local storage.
updated to show that work needs to be done.
added a memory storage object; still need to add the object init.
added individual checks for the memory caches
updated the readme
moved final item to promises (hint, it's the set function)
moved over final item; lacks tests and won't work with async stores; …
moved over most of the items to the provider; missing is the multi ke…
version number bump
fixed up an arrow function, need to be es5 compat
added unit test for bad user input
shifting away from es6 for compatibility
Added an overwrite function
slight change in documentation
added the ability to mutate objects on output.
Added the ability clear items using wildcard characters
commented out project
initial commit. Needs comments and README to be written