fix old ConstraintValidator::isValid() call
[css] clear floating before text headings
[js] tweaks by gamebook view
prepare user contrbs editing on text admin page (not finished)
load WebProfilerBundle for all except prod
[command] load empty value from data template as null
fix renamed file inclusion - headerextract.php
[sfb, view] fix internal links in one-page texts
[test] a test for SfbParserSimple