We use fontawesome to render our icons on this project. fontawesome.io/icons/
They've released newer versions than what we're currently using for this project, both to add new icons and to update old ones as companies' brands change. Right now, the logo icons we have for Instagram and Google are outdated.
You will need to download the latest release of fontawesome (4.6.3 as of the creation of this issue), and then update the files in https://git.gmu.edu/srct/roomlist/tree/amherst/roomlist/static in the css/ and fonts/ directories.