There was no need to call gsub twice, when an `|` performed the same
task for searching for brackets and colons. Now this is done in one call
to `gsub()`.

For SPRratio and recruitment deviations, because this information is in
in the derived quantities and recruitment sections that do not summarize
by season or area but rather by year. Determine season of recruitment
from elsewhere in the report file rather than just assign 1.

Use semantic versioning.