Corrijo muchos bugs en la base de datos del repositorio y creo sus pruebas unitarias.
 On branch prueba
 Changes to be committed:

	new file:   database/ImageRepositoryDB.sql
	renamed:    database/repository/__init__.py -> database/imageRepository/__init__.py
	new file:   database/imageRepository/imageRepositoryDB.py
	deleted:    database/repository/repositoryDB.py
	new file:   database/tests/ImageRepositoryDBTest.sql
	new file:   database/tests/imageRepositoryDBTests.py
	renamed:    network/ftp/__init__.py -> imageRepository/__init__.py
	new file:   imageRepository/packets.py
	new file:   imageRepository/remoteFileServer.py
	deleted:    network/ftp/ftpClient.py
	deleted:    network/ftp/ftpException.py
	deleted:    network/ftp/ftpServer.py
	deleted:    network/ftp/twistedInteraction.py
	modified:   network/manager/networkManager.py
	modified:   network/twistedInteraction/connection.py
	modified:   network/twistedInteraction/protocols.py
	modified:   network/twistedInteraction/serverConnection.py