Add French Translation for new items in ui_lang.php
User photos: Adding new database fields within users table definition. photo_source = NULL (gravatar); photo_source = 'custom' (locally uploaded photo).
User photos: Adding a folder for uploading custom user photos.
User photos: Adding a library and a configuration file for supporting custom user photos.
User photos: Upgrading User_photo model, it now has ability of choosing between gravatar and custom photo, based on 'photo_source' option.
User photos: Adding a new model User_photo_manager that is to serve uploading of custom user photos.
User photos: Adding a copyleft note.
User photos: Adding an application with the only purpose of showing custom uploaded user photos. The URL mimics in some degree the structure of Gravatar's URL, the hash value is md5($user_id).
User photos: Adding a simple helper function for demonstration how to show gravatar/custom user photos eventually.
User photos: Making configurable some hard-coded parameters of uploaded user photos.
User photos: Adding display_user_photo() helper function.
Merge pull request #33 from dev-ggallon/develop

Add French Translation for new items in ui_lang.php
Tagging a Release Candidate - v4.0.0-rc14.
Updating CodeIgniter.