Update interactions.md with current feature.
Match spec to feature.

Refactor JobseekerAndJobsReport spec to occur within a spec for the more closely corresponding feature.

Change variable and method names to reflect their new usage.
Add JobseekersAndJobsListReport specs.
Add new application report spec.

Add (fulfilled) spec confirming that JobseekersAndJobsListReport reports on jobs applied to by jobseekers after the initial ones.
Add TODOs to notes.txt.
Add SubmissionDate and SubmissionList classes.

Add SubmissionDate and SubmissionList classes, in anticipation of using them for reports.