added my class diagrams
Merge pull request #5 from andy2013march/master

Added simple and detailed class diagrams
uploaded the skeletons for all my classes and started working on Location.java
Merge pull request #6 from andy2013march/master

Adding my .java files and semi-complete Location.java
Update Location.java

Removing previous package name from source code
Update Address.java

Forgot to remove package name from src
Update EmailAddressNonExistentException.java

Forgot to remove package name from src
Update Participant.java

Forgot to remove package name from src
Update PhoneNumber.java

Forgot to remove package name from src
Update PhoneNumberInvalidLengthException.java

Forgot to remove package name from src
Update PhoneNumberNonNumericException.java

Forgot to remove package name from src
Update ZipCodeInvalidFormatException.java

Forgot to remove package name from src
added some folders for organization
added list of responsibilities
Merge pull request #9 from jkuk/master

responsibility list
fixed small syntax issue
Added a state diagram.
added exception classes.
finished UserData dummy implementation.
changed version and fixed version related issues