Let everyone know I am alive.
merged most recent commit.
Removed useless comments.
Wrote the readFromFile() method.
Merge branch 'master' of git://github.com/GarrysSon/P2 into GarrysSon-master

Conflicts:
	src/ConferencePaper.java
	src/IO.java
	src/IOTest.java
	src/JournalArticle.java
	src/Paper.java
Updated unit tests, finished readFromFile()