Update resource file path for NMNH Image col'n resources.
Merge remote-tracking branch 'upstream3/master'
DATA-1080 Latest changes requested on Jan11. Source_url and description tweaks.
YouTube connector to handle error API return "too many recent calls". Provision to retry when access fails.
Merge pull request #8 from eliagbayani/master

NMNH Image Col'n, YouTube, Ecomare connector updates