1. Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA.
2. Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USA.
3. Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.
4. University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA.
5. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, IL 61801, USA.
6. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.
7. Western Kentucky University, 1906 College Heights Boulevard, Bowling Green, KY 42101, USA.
8. Center for Cosmological and Particle Physics, New York University, 4 Washington Place, New York, NY 10003, USA.
9. Department of Astrophysics, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024, USA.
10. Department of Physics and Astronomy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854, USA.
11. Department of Physics, University of California, Davis, CA 95616, USA.
12. Steward Observatory, University of Arizona, Tucson, AZ 85721, USA.
13. Department of Physics, University of Chicago, 5720 South Ellis Avenue, Chicago, IL 60637, USA.
14. Kavli Institute for Cosmological Physics, University of Chicago, 5720 South Ellis Avenue, Chicago, IL 60637, USA.
15. Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Demark.
16. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA.
17. School of Physics, University of Melbourne, VIC 3010, Australia.
18. Institut d’Astrophysique de Paris, 98 bis Boulevard Arago, F-75014 Paris, France.
19. INAF-OAR, Via Frascati 33, 00040 Monte Porzio, Rome, Italy.
20. Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive Suite 102, Goleta, CA 93117, USA.
21. Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
22. Astrophysics Science Division, NASA Goddard Space Flight Center, MC 661, Greenbelt, MD 20771, USA.
23. Joint Space-Science Institute, University of Maryland, College Park, MD 20742, USA.
24. The Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo Observatory, via Cotter Road, Weston Creek, Australian Capital Territory 2611, Australia.