Improve fragments management (especially DetailDefaultFragment)
Cleanup useless code and add Smoothie dependency :-)
Change a few strings
Uvs and Uv comments are now loaded, that's right, dynamically. Was about time
Remove useless sample data
Update .gitignore to avoid committing .json data files
Improve data loading and caching during configuration changes.

Also clean up a lot of code
Improve detail fragment empty view management