Remove dead link

Final commit for version 0.7.4

Apply "donttest" to nhanesTranslate test functions.

Minor updates for CRAN submission

Add version 0.7.1 to News

Update nhanesA URL to canonical form

Wrap tests in donttest to avoid > 5 second failure during CRAN check

Replace Hmisc sasxport.get with foreign read.xport

Fixed a bug in function nhanesSearch. Simplified a section of the vig…

…nette.

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