Continue to show the error message modal, but add an option to suppress errors if we're checking directories on the first startup.
Continue to show the error message modal, but add an option to suppress errors if we're checking directories on the first startup.


Former-commit-id: 01273669199756b035423b500d6b71c5e2da63c9
phac-nml/irida-miseq-uploader,phac-nml/irida-miseq-uploader