added function get_fiedler so it is more portable and can potentially be used standalone somewhere else. Added functionality for the genetic algorithm, though the current changes make gaopt routine to probably not run standalone since function calls are slightly different.
Merge branch 'master' of https://github.com/sanshar/Block
Merge branch 'master' of https://github.com/sanshar/Block
Made Fiedler vector default when there is no reorder flag is on. Added option in genetic algorithm to include fiedler vector as a seed in one of the populations