Update links_constants.php
Update links_constants.php

Define constant LINKS_COL_URL -> http://apiwiki.moz.com/link-metrics#linkcolsvals
seomoz/SEOmozAPISamples,iftekeriba/SEOmozAPISamples,cemoulto/SEOmozAPISamples,iftekeriba/SEOmozAPISamples,seomoz/SEOmozAPISamples,seomoz/SEOmozAPISamples,iftekeriba/SEOmozAPISamples,seomoz/SEOmozAPISamples,cemoulto/SEOmozAPISamples,iftekeriba/SEOmozAPISamples,cemoulto/SEOmozAPISamples,seomoz/SEOmozAPISamples,cemoulto/SEOmozAPISamples,seomoz/SEOmozAPISamples