COLLEGEVINE, a Cambridge, Mass.-based platform to connect high school students to mentors at colleges and universities, has raised $3.1 in a Series A round. Morningside Technology Ventures led the round and University Ventures also participated. CollegeVine, formerly Admissions Hero, matches high schoolers with college students who work with them 1:1 for a year to help with the college application process. CollegeVine CEO Jon Carson says the company will use the funds to build out its technology platform and grow its team.