Exposing GUI implementation and adding IntelliJ IDEA's .jar
Commenting Book Factory
Merge branch 'master' of https://github.com/robertoramsis/aghapylibrary

Conflicts:
	aghapyproject/nbproject/project.properties
	aghapyproject/src/aghapyproject/Lib.java
	aghapyproject/src/aghapyproject/LibraryItemFactory.java