Switch from aims2 to ORNL metagrid links #762

Job	Run time
check-docs-up-to-date	29s
check-database-up-to-date	40s
cvs-load-with-input4mips-validation	40s
check-source-id-landing-pages-up-to-date	23s
urls	15s
check-web-pages-up-to-date	47s
	3m 14s

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