Bugfix for tunable costs. You must not put anything after salt->keys
due to optimizations. Solar should have commented on that in the header.
Merge pull request #561 from frank-dittrich/bleeding-jumbo

Report tunable costs for more formats, remove unused fields from salt definitions,  fix a typo in a comment,
Report tunable cost values: dmg_fmt_plug.c drupal7_fmt_plug.c encfs_fmt_plug.c