更新了 podspec.
更新了 podspec.

jpipard/DKImagePickerController,metasmile/DKImagePickerController,North-American-Signs/DKImagePickerController,jpipard/DKImagePickerController,gorjuspixels/DKImagePickerController,zhangao0086/DKImagePickerController,metasmile/DKImagePickerController,North-American-Signs/DKImagePickerController,gorjuspixels/DKImagePickerController,zhangao0086/DKImagePickerController