Checkpoint

Learning a lot from assembling human.  Some major changes will be coming
along shortly.
Tweaks to the adaptor workflow

- Switch to numeric IDs instead of PacBio IDs to save space.
- Limit hits from daligner to top 200 based on 'score'.
- Get sequences from the DB instead of creating, merging and reading
from a fasta file.
Merge branch '2.3.0' of github.com:PacificBiosciences/smrtmake into 2.3.0