Merge pull request #82 from hetlelid/patch-4

Update ccd_defs.json

Former-commit-id: 50da0f1320

ccd_defs.json

@@ -293,5 +293,6 @@
   "OLYMPUS SP550UZ": 5.76,
   "Gopro HD3": 5.76,
   "DJI FC350": 6.17,
-  "Panasonic DMC-TS4": 6.08
+  "Panasonic DMC-TS4": 6.08,
+  "NIKON COOLPIX P7700": 7.44
 }