Security issue by dependency

Hard set of dependency node-uuid to >= 1.4.4 because of security issue.

Dependency update

• Updated dependencies
• changed watcher to grunt-contrib-watch
• added Readme section Play with it

Optional change to `crypto-js`

it's now possibel to use crypto-js as crypro module, so it possible to use the module inside the browser.

Mime depenency

Moved from mime to mime-nofs to use this module inside external modules like react-native or within the browser (thanks to retorquere)

ACL Update + Custom Condition fix

Added all possible acl options and fixed numeric custom conditions (thanks to retorquere)

Fixed Issues: #5, #6, #7