Merge pull request #187 from derevnjuk/ignore_null_and_undefined

fix: prevent sending null and undefined

Author: Shouqun

.gitignore

@@ -4,3 +4,4 @@ build
 *.swp
 *.node
 node_modules
+.idea

package.json

@@ -5,7 +5,8 @@
   "author": "Shouqun Liu <[email protected]>",
   "contributors": [
     "Fred Chien <[email protected]>",
-    "Bryan Burgers <[email protected]>"
+    "Bryan Burgers <[email protected]>",
+    "Artem Derevnjuk <[email protected]>"
   ],
   "license": "MIT",
   "repository": {
@@ -17,8 +18,11 @@
   },
   "main": "./lib/dbus",
   "scripts": {
-    "install": "node-gyp configure build",
-    "test": "tap test/**/*.test.js"
+    "node-gyp": "node_modules/.bin/node-gyp",
+    "install": "npm run build:release",
+    "test": "tap test/**/*.test.js",
+    "build:release": "node-gyp configure build",
+    "build:debug": "node-gyp configure build --debug"
   },
   "dependencies": {
     "nan": "^2.1.0"
@@ -27,6 +31,7 @@
     "!win32"
   ],
   "devDependencies": {
+    "node-gyp": "^3.6.2",
     "tap": "^10.0.2"
   }
 }