Move encryption/decryption to item classes
Remove knife decrypt cert and password and make generic knife decrypt
committing for posterity
Override to_json method to replace ChefVault class names with superclass class names
Remove self.json_create from item and itemkeys, not needed
Move key loading to function to set the secret at item load time
Add metadata in keys data bag to know which keys are clients and which are admins
Add exception handling and rename rotate secret to rotate keys
Add encrypt update command
Add encrypt delete command
Update CHANGELOG
Update CHANGELOG, README, & KNIFE_EXAMPLES
Add item_keys_spec and item_spec
Add deprication warning on user and certificate class
Update destroy method to use id and not name
Add better not encrypted for you message
Update remove to take just a list of values to remove and not require full json.  Full json will still work if supplied
Update README with information about chef-vault 1.0 support
Fix remove issue when json not passed in
Update gem version number