Changes for version 0.08 - 2014-03-27
- change 'sub new' to support inheritance
- add _rordkeys and _rordvals to reset the key and value indices in the event the hash is reused enough to make the indices > 2**48 which approaches the point where perl will convert the number to a float and it will no be unique
- add extension capablity to FETCH, STORE, NEXTKEY, EXISTS, etc... so that an action can be taken when a key/value pair is touched