Updating version - 3.8

1. Implement HTML5 Social Login Functionality.
2. Add LoginRadius v2 API
3. Implement LoginRadius dump API
4. Remove Social Sharing title and offset option from admin UI
5. Code and option cleanup
6. Extension supported English, Spanish, French, Italian, Russian,
German, Greek, Danish, Romanian, Ukrainian, Dutch, Estonian, Polish,
Portuguese language
7. Sharing script generated from cache
8. Simplified Extension Admin UI