start work on a super-simplified 2x2 sudoku
Add a 2x2 sudoku puzzle solver
Extend the test to a 3x3 sudoku test
Expand the unordered-link test
extend the unordered UTest some more
More unordered UTest expansion
More expansion of the unordered utest
misc tweaks
Merge pull request #1089 from linas/sudo

expand the pattern matcher unordered link unit test