Updated with new hero images

This patch used the script to download the latest heroes and
thus updated the img folder and the config files

Signed-off-by: Mattijs Korpershoek <mattijs.korpershoek@gmail.com>
Removed unused code

Removed header comments
Removed unused imports
Removed some spaces
started unit test implementation
Added unit test for model classes

Added some basic unit tests before refactoring

Signed-off-by: Mattijs Korpershoek <mattijs.korpershoek@gmail.com>
Refactored model

Changed to gateway naming,
Removed dependencies,
Attempt to make it simpler

Signed-off-by: Mattijs Korpershoek <mattijs.korpershoek@gmail.com>
Updated GUI with new look and feel.

Changed background color and font to georgia in order to
match better the official colors

Signed-off-by: Mattijs Korpershoek <mattijs.korpershoek@gmail.com>
added hamcrest core for unit testing