Update BinaryTree.java

Change tree transversal to return strings
Update BinaryTree.java
Update BinaryTree.java

Formatting change, fixed errors in prior changes.
Update BinaryTree.java

Updated to store elements in an array when transverse in the different methods to be more general is accordence with wishes expressed by professor.
Created a method with which to read a text file and generate the BST
Merge remote-tracking branch 'AsylumRunner/TextInput'
Merge remote-tracking branch 'ktillotson/playbranch'

Conflicts:
	src/main/java/org/CS2336/BinaryTree.java