Fixed bug in metapred where multiple genFUN raised an error. Added parameter to allow for multiple options for handling multiple genFUN and perfFUN simultaneously. Changed gen so that multiple generalizability estimates can be retrieved simultaneously.
Added tests for multiple generalizability and performance functions in metapred. This should prevent the fixed bug from reoccuring.
Fixed test that raised an error when plotting valmeta. Note that the statistical issue remains, just the test is fixed.
Split tests for ccalc and oecalc into three. Note that this highlights an unintended difference in estimates, which fails the test.