Update build.xml
Update .gitignore
Add version.txt to libraries/txf/txf/version.txt
Use 'transparent' in stead of 'none' for the color selector

Since 'none' is CSS invalid. We could also add 'none' in the future if we really need it. Using 'transparent' allows you to easily use the color in the code without breaking HTML and without adding an extra check for 'none'.
Colorpicker codestyle
Added Txf\Utils\String class
Make the deprecated include.php more future proof by removing the define check
Return boolean which indicates if the string has been limited
Forbid web access to library files
Use semantic versioning
Add CHANGELOG
Don't use fof and fof23 directory folder.

Code within our framework also rely on FOF 2.3. If there are backward compatibility issues within our framework (e.g. when using FOF 3.0.0), we should release Twentronix Framework 2.0.0.
Update CHANGELOG
Add Input\Normalised class
Add composer.json