Reversed aging cast.
Added test.
Added test.
Added constants for easy size limits.
Added checks to ensure that maximum age and size was set properly before purging.
Age check is not >= instead of >.
Added test for cache timeout.
Added tests.
Started implementing the automatic purger.
Changed initialisation.
Renamed etc.
Added test.
Added comment.
Added comment.
Added comment.
Added comment.
Added comment.
Added a proper readme.
Added link to documentation in the read me.