Bumping version to 3.2.0
Bumping version to 3.2.0

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