Added podspec (#25)

* Added podspec

* Make package.json play nice with podfile

- Make url use https
- Add description

* Update package.json

package.json

@@ -1,15 +1,15 @@
 {
   "name": "react-native-version-number",
   "version": "0.3.2",
-  "description": "",
+  "description": "Access app version inside React Native",
   "main": "index.js",
   "scripts": {
     "lint": "eslint index.js",
     "test": "npm run lint"
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/APSL/react-native-version-number.git"
+    "url": "https://github.com/APSL/react-native-version-number.git"
   },
   "tags": ["react", "react-native", "react-component", "ios"],
   "keywords": ["react", "react-native", "ios", "react-component"],

react-native-version-number.podspec

@@ -0,0 +1,17 @@
+require 'json'
+package_json = JSON.parse(File.read('package.json'))
+
+Pod::Spec.new do |s|
+
+  s.name           = "react-native-version-number"
+  s.version        = package_json["version"]
+  s.summary        = package_json["description"]
+  s.homepage       = "https://github.com/APSL/react-native-version-number"
+  s.license        = package_json["license"]
+  s.author         = { package_json["author"] => package_json["author"] }
+  s.platform       = :ios, "7.0"
+  s.source         = { :git => "#{package_json["repository"]["url"]}.git", :tag => "v#{s.version}" }
+  s.source_files   = 'ios/*.{h,m}'
+  s.dependency 'React'
+
+end