Free args struct.
Beginnings of parallel implementation.
Added argument checking.
Newline after matrix print.
Added seed argument 'k'.
DEBUG and VERIFY compile options.
Verify outputs matrices (to compare sequential and parallel runs.).
Debug prints thread arguments and some other things.
Implemented parallel components.
Multiplication is not working yet; need to figure out how pthreads share memory.
Additional debugging output.
Along with 'make vdebug' for verbose output.
More thread debug output.
Threaded implementation works.
Needed to pass size arguments to threads :/
Merge branch 'feature/parallel' into develop