Eval setup loading spinner shows "setup.evallicense.importlicense.loading"

We seem to be missing a translation string for "setup.evallicense.importlicense.loading"

Steps to reproduce:

• Download Confluence 5.6.5 and install
• In the setup procedure, select evaulation setup/trial
• Enter an evaluation license and submit the form

Notice the spinner appears and next to it is the text "setup.evallicense.importlicense.loading"