Merge pull request #258 from jcla1/master

Added Bozosort in Python
Added Sudoku solver in Lua
Merge pull request #260 from jcla1/master

Added Bozosort in Ruby, basically the same as the Python implementation.
Fixed backtracking
Added tests
Added tags
Removed unused file
Merge pull request #261 from Yonaba/master

Added Sudoku solving algorithm