Tagging 2.7.0

1. 32fc3d2 [Falcon] Cleanup of unused annotations in optical test topos. by Marc De Leenheer · 8 years ago
2. 603e8d9 Optical related minor fixes by HIGUCHI Yuta · 8 years ago
3. 1afa2a0 Rewrote optical connectivity intent compiler by Marc De Leenheer · 9 years ago
4. 44e62c7 Lots of improvements in opticalUtils.py by fahad · 9 years ago
5. 025fb44 Adding more T-ports to big topo by Brian O'Connor · 9 years ago
6. eb27c45 Adding optical topo files by Brian O'Connor · 9 years ago