Minor adjustment
- refactor code and remove unused code
- add custom class name for clone limit span element metal-clone-limit
- add custom class name for remove button metal-btn-remove
- add btnRemoveClass option
- add btnCloneClass option
- add fontAwesomeTheme option
- add fontAwesomeRemoveClass option
- add fontAwesomeAddClass option
- add fontAwesomeAddDataTransform option
- add fontAwesomeAddDataMask option
- add fontAwesomeRemoveDataTransform option
- add fontAwesomeRemoveDataMask option
- add enableConfirmMessage option
- add confirmMessageText option
- add enableIcon option
- add enableAnimation option
- add animationSpeed option
- add enableScrollTop option
- add scrollTopSpeed option
- Compatibility to the latest stable of jquery version(v3.3.1)
- Checking for selector of element during plugin initialisation
- ** Will remove "trash" image inside popup(table rows cloned) and replaced with font-awesome in next release