first commit
fixed longest palindrome(#4), added #5-#6
added #7, #8
changed filename
Merge branch 'master' of https://github.com/thatGuy-/JavaInterviewQuestions into existing

Pulling in README.md
fixed #8
removed test file
updated readme, added #9-#13
added #14-#18
added #19 and #21
added very simple BinaryTree and Node classes for testing purposes#19- #21
fixed binary tree questions