Add Bower config

bower.json

@@ -0,0 +1,19 @@
+{
+  "name": "planetary.js",
+  "version": "0.0.0",
+  "main": "dist/planetaryjs.min.js",
+  "ignore": [
+    ".git",
+    ".gitignore",
+    "site",
+    "src",
+    "node_modules",
+    "gulpfile.js",
+    "package.json",
+    "screenshot.png"
+  ],
+  "dependencies": {
+    "d3": "3.x",
+    "topojson": "1.x"
+  }
+}

package.json

@@ -21,6 +21,7 @@
     "gulp-concat": "BinaryMuse/gulp-concat",
     "gulp-header": "~0.4.0",
     "gulp-uglify": "~0.1.0",
-    "gulp-rename": "~0.2.1"
+    "gulp-rename": "~0.2.1",
+    "bower": "~1.2.8"
   }
 }