implements guess the number

Initial implemention of "Guess the number"
http://rosettacode.org/wiki/Guess_the_number
Merge pull request #21 from gereeter/master

General orginizational cleanup
Fixed merge #22
Fixed merge #20
Implements bubble sort

http://rosettacode.org/wiki/Sorting_algorithms/Bubble_sort
more test
optim : doesn't have to check the whole range each time
bubble sort work on Orderable
bubble sort : added a main to compile with makefile
bubble sort : added to README.md
Merge pull request #23 from Nojan/bubbleSort

implentation of Bubble sort
Implements quick sort
Quick_sort : update README.md
Merge pull request #24 from Nojan/quick_sort

implementation of Quick sort
Updated anagram to new version
Random moved to its own crate
Merge pull request #25 from mvdnes/update

Fixed missing mangle and rand moving to its own crate
N_Queens fix.
.to_owned_vec() was removed.
Specific types and IOError fixing.