Build: Add a main field, prepublish, and move jquery dependency

Closes #99

Author: wbinnssmith

.npmignore

@@ -0,0 +1,8 @@
+.project
+.settings
+*~
+*.diff
+*.patch
+/*.html
+.DS_Store
+node_modules

package.json

@@ -2,6 +2,7 @@
   "name": "jquery-migrate",
   "title": "jQuery Migrate",
   "description": "Migrate older jQuery code to jQuery 1.9+",
+  "main": "dist/jquery-migrate.js",
   "version": "1.2.2-pre",
   "homepage": "https://github.com/jquery/jquery-migrate",
   "author": {
@@ -21,10 +22,8 @@
       "url": "https://github.com/jquery/jquery-migrate/blob/master/LICENSE.txt"
     }
   ],
-  "dependencies": {
-    "jquery": "^2.1.3"
-  },
   "devDependencies": {
+    "jquery": "^2.1.3",
     "grunt-git-authors": "3.0.0",
     "grunt-contrib-concat": "0.5.1",
     "grunt-contrib-watch": "0.6.1",
@@ -36,5 +35,8 @@
     "qunitjs": "1.17.1",
     "testswarm": "~1.1.0"
   },
+  "scripts": {
+    "prepublish": "grunt"
+  },
   "keywords": []
 }