Final exam code by Mark_B2

Just uncomment problem7-20  and run
Adding solutions to Final exam. This requires the statistics package, and uses waitbar for a UI to show remaining time for experiment completion.
Merge pull request #16 from MarkB2/master

Final exam code by Mark_B2
Merge pull request #17 from fedelebron/master

Adding solutions to Final exam.
Merge pull request #15 from kanhua/master

Add HW7Q8 solution in Matlab
Updated README, added Python solution by kirbs.
Added C#/.NET4 code for final exam
Merge pull request #18 from stochastictinker/master

Added C#/.NET4 code for final exam
Added final exam R solution by AnantSogani. Update homework 8 R solution
by sanealytics with correct file (previously had a copy of FredParis's
solution).
Final exam solutions
Merge pull request #19 from fredcommo/master

Final exam solutions
Added sanealytics R solution. Cleaned up Rcode folder to properly attribute code to contributors.
Added Homework 1 & 8 R solutions by Anant Sogani