updating project properties and removed eventdetailsmanager
updated manager classes, created reportable interface, modified UML
Merge pull request #28 from jkuk/master

ManagerSystem
Merge pull request #29 from KettyLezama/master

Classes moved to EventSystem folder of BackEnd & changes done in classes.
moved files from BackEnd to UserSystem sub folder
Completed Exceptions and Modified all other files
Merge pull request #30 from andy2013march/master

Moved files from Backend folder to UserSystem subfolder, completed all Exceptions and modified files
fixed a couple minor details in the manager classes
Merge pull request #31 from jkuk/master

minor fixes in manager classes
Updated event system classes.