[FIX] Using `seqan/parallel.h` in `mason.h` for `SEQAN_OMP_PRAGMA()`.
[FIX] Using `seqan/parallel.h` in `mason.h` for `SEQAN_OMP_PRAGMA()`.


git-svn-id: a7f2a8f7432d210e972fb03898013d213e2b549b@11962 e6417c60-b987-48fd-844e-b20f0fcc1017

gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan,gkno/seqan