Implementada vista de archivos
Merge branch 'master' of https://github.com/jesubiag/VaadinTest01

Conflicts:
	src/com/yotelopaso/persistence/DataManager.java
	src/com/yotelopaso/presenters/SubjectsPresenter.java
	src/com/yotelopaso/utils/DataInitializer.java
	src/com/yotelopaso/views/SubjectsView.java
	src/com/yotelopaso/views/implementations/SubjectsViewImpl.java