Bumping version to 2.4.2
Bumping version to 2.4.2

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