添加webp库引入pod方式

review by 枪兵

 Pod::Spec.new do |s|
   s.name             = "YHExplorer"
-  s.version          = "1.5.0"
+  s.version          = "1.5.1"
   s.summary          = "Integrated WebView with Cordova"
   s.description      = <<-DESC
                        An WebView Kit integrated Cordova.
@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
   s.platform     = :ios, '7.0'
   s.requires_arc = true
 
-  #s.dependency 'YH_WebP', '~> 1.0.0'
+  s.dependency 'ALWlibwebp', '~> 0.1.4'
 
   s.source_files = 'YHExplorer/*.{h,m}'
   s.resources = 'YHExplorer/*.{xml,js}'