Redirect to Product Page when only One product in category

[Taberville]

Just a note, if your using CDSEO then:
Replace:

{assign var="prodURL" value="product.php?productid=`$products.0.productid`&cat=$cat&page=1"}

with:

{assign var="prodURL" value="`$http_location`/`$cdseo_prod`/`$products.0.cdseo_url`"}