[FIX] Fixing problem in bam_stats with edit distance computation.
[FIX] Fixing problem in bam_stats with edit distance computation.

Was caused by `begin()` of a `Gaps` object returning iterator to first non-gap position.

git-svn-id: a7f2a8f7432d210e972fb03898013d213e2b549b@11779 e6417c60-b987-48fd-844e-b20f0fcc1017

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