SSP-3028 Make UI 'current term' calc more closely match server's
SSP-3025 Support wildcards in Risk indicator codes

Can now have indicators codes in the RISK group where asterisks are
treated as wildcards. This is helpful if you load fine-grained
external risk indicators, e.g. course-level indicators. In that case
you could set up a code in reference data like:

  mymodel.course.*

That would match course-level indicator values in
external_student_risk_indicator that has codes like:

  mymodel.course.MATH101-FA2014-001

Indicator *model* codes do not support wildcards - just indicator
codes themselves.