Merged e774d2, fd6678 from mkorcy/tdl_hydra_head : TDLR-486, TDLR-490
Merged 2ec2, ae072, afa1bb from mkorcy/tdl_hydra_head : DCA-1143 creating a new featured collection page for the Tufts New England medical Center according to template sent by Susanne Belovari, moving it to being featured from the homepage, moving Walter Wriston off the homepage. modifying the homepage to point to the New England medical Center collection. by request of SB, changed the link text on the home page, the page title, and the splash image. Also change the contact us form to link to the research help page.