First changes

- Updated all files to replace spaces indents by tabs.
- Updated all files to remove extra new line in loops/if/... statements
- Deleted `webroot/img/`, `webroot/css` as I won't need them anymore
- Updated `webroot/js/acl_plugin.js`
- Updated views to work with TB3/Fonts Awesome:
- Views
- Elements
- Errors
- Started to add a `title_for_layout` var in controllers actions.
Update and rename CHANGELOG to CHANGELOG.md
Update CHANGELOG.md
Rename README to README.md
Update README.md
Merge pull request #1 from mtancoigne/mt-beta

First changes