[READY] Profile page updates

- [x] Pagination '1 of 0'
- [x] Fix Edit Profile sending request even if no details are changed
- [x] Show full-page-overlay when saving edited profile
- [x] 'Here are your cloned environments. How about cloning another?' (#104 31c97c4)
- [x] Remove `target="_blank"` if user hasn't entered Facebook / Twitter details
- [x] Re-style Edit Profile and New Clone buttons