v0.4.0.
Changed #update signature, now it returns an object/hash also with digest.
Changed #evict signature, now it accept an object/hash.
Added #delete method, it accepts encoded strings.
Added #get method, it accepts encoded strings.
Some fixes, better code.,
On branch master
modified:   Readme.md
modified:   example/camphora-example.js
modified:   lib/camphora.js
modified:   package.json