make glob a dev dependency

Author: etpinard

package.json

@@ -64,7 +64,6 @@
     "gl-select-box": "^1.0.1",
     "gl-spikes2d": "^1.0.1",
     "gl-surface3d": "^1.0.6",
-    "glob": "^6.0.1",
     "mouse-change": "^1.1.1",
     "mouse-wheel": "^1.0.2",
     "ndarray": "^1.0.16",
@@ -85,6 +84,7 @@
     "browserify": "^12.0.1",
     "browserify-transform-tools": "^1.5.0",
     "ecstatic": "^1.2.0",
+    "glob": "^6.0.1",
     "jasmine-core": "^2.3.4",
     "jshint": "^2.8.0",
     "karma": "^0.13.15",