Adding some BTree Utilities.
Merge branch 'master' of https://github.com/deepng/Learning
Adding merge and quickSort in python
Merge branch 'master' of https://github.com/deepng/Learning

Conflicts:
	JavaSrc/projects/DataStructures/src/tree/TestBinaryTree.java
BST update
Merge branch 'master' of https://github.com/deepng/Learning

Conflicts:
	JavaSrc/projects/DataStructures/src/tree/BinarySearchTree.java
	JavaSrc/projects/DataStructures/src/tree/TestBinaryTree.java