Added documentation to RandomSearchCore; fixed issue #2; edited generate_random_vec to _generate_random_vector for non-public and naming consistency.
Added documentation to RandomSearchCore; fixed issue #2; edited generate_random_vec to _generate_random_vector for non-public and naming consistency.

fdiehl/apsis,fdiehl/apsis,FrederikDiehl/apsis,fdiehl/apsis,FrederikDiehl/apsis