Update RNDeviceInfo.podspec

Resolved a hard error (missing authors)
Resolved warning (git repo should end in .git)
Updated version to match package.json

RNDeviceInfo.podspec

 Pod::Spec.new do |s|
   s.name         = "RNDeviceInfo"
-  s.version      = "0.4.1"
+  s.version      = "0.9.1"
   s.summary      = "Device Information for react-native"
 
   s.homepage     = "https://github.com/rebeccahughes/react-native-device-info"
 
   s.license      = "MIT"
+  s.authors      = { "Rebecca Hughes" => "rebecca@learnium.net" }
   s.platform     = :ios, "7.0"
 
-  s.source       = { :git => "https://github.com/rebeccahughes/react-native-device-info" }
+  s.source       = { :git => "https://github.com/rebeccahughes/react-native-device-info.git" }
 
   s.source_files  = "RNDeviceInfo/*.{h,m}"