added logger + handler interface
added momentjs dependency
changed interface for handle method, need to pass the message we want and an extra informations variable
added dependency + logger interfaces to the page
added a core logger + a handler which output messages to the browser console
added a verification that console var exists in window object before trying to output message
added corelogger and console handler to the page
added a logger as a service, with all handlers available
instead of stringifying the extra data, output it as is (better for object exploration)
Merge branch 'feature/logger' into develop
#3 added a logger dependency to the mediator to log errors when exceptions are thrown during subscribers executions
close#3 Merge branch 'feature/mediator-sc' into develop