XNAT-3285 Added missing closing parenthesis.
XNAT-3285: Added check for blank strings on incoming PET tracer configurations.

Changes to applet jars correspond to changeset https://bitbucket.org/nrg/uploadassistant/commits/3eaeed80cd3e9e8bc1a42c42221d254fb7cd4e01
XNAT-3195: New Experiment page needs to factor in limited permissions.  Additions to new URLs
XNAT-3300: Converted applet script mgmt to use checkbox instead of radio button (Justin had migrated
others to use checkbox, so it's now consistent). Added in response message once settings are saved.