- xfprocessor now checks if formwrapper is present but goes on if not
- removed duplicate files
[saxon-upgrade] second road first steps
[saxon-upgrade] ....
[saxon-upgrade] ....
Merge remote-tracking branch 'origin/development' into saxon-9.4
Revert "[saxon-upgrade] ...."

This reverts commit b5b4e8954796c8f71544b55b525ea0fb33578024.
Revert "[saxon-upgrade] second road first steps"

This reverts commit 7b67cd8bb8e850410c1cd65da64592d12a36692e.
[saxon-upgrade] Ongoing development, 2 Tests left ...
[saxon-upgrade] Saxon 9.4 lib
- moved demo.css, registration.css and reference.css to *.less
- introduced variables.less for all betterform.css colors, font-sizes... (is included by betterform.less)
- reduced many css rules in betterform.less
- small xsl bugfix for xf:secret (duplicate alerts were rendered)
- updated maven poms to be able to compile / package the project with maven
- removed betty from poms
[JS] fixed median calculation for ranges
[JS] Updated bf js release
[ANT] fixed deploy forms into eXist target
[saxon-upgrade] resolving name resolution (NodeTest#toString() had changed, changed to NamePool#getLocalName(int code)) and corresponding TestCase
[Java] fixed NullPointerException in UIElementStateUtil
[forms] added target to deploy all(!) forms from bf project into eXist-db
[saxon-upgrade] handle the return section of given let expression, too
[Java] Bugfix to send error messages back to the client if FluxFacade.dispatchEvent is called for a not existing session