Remove direct devDependency on istanbul, we have nyc for that

aredridel · aredridel · commit 206295ab86d1 · 2015-06-01T15:31:42.000-04:00
diff --git a/package.json b/package.json
@@ -32,7 +32,6 @@
   "devDependencies": {
     "adaro": "1.0.0-9",
     "freshy": "0.0.2",
-    "istanbul": "~0.2.4",
     "jshint": "~2.4.3",
     "nyc": "^2.0.5",
     "tap": "^1.0.8"
