Update algorithm to its latest revision.
Fix word getters from block_t.
Get rid of mod function, as the updated spec deals only with unsigned numbers.
Properly rotate |rand| when picking col1 on the Wandering Phase.
Update prev1 at each iteration of the Wandering loop.
Mark sponge functions static.
Remove extra ;
Declare row0 along with the other variables.
Add some tests for the compression function.