Release iText 5.4.4

When we released iText 5.4.3, we promised that we would continue working on PDF/A, more specifically: provide all the checks that ensure you the file you're creating is either PDF/A-2 or PDF/A-3, just the way we did with PDF/A-1. 

iText 5.4.4 brings interesting new functionality in the area of accessibility (PDF/UA), more specifically when forms are involved. The next release will again focus on archiving (PDF/A).