[NTG-context] Problem with creation of a new alignment

Hello all in 2014, the following minimal example does not work, neither with start-stop marks, nor with \setupalign, nor with both. I use CTX from TeXlive 2013. The same behaviour has been found in TL2012 whereas in TL2011 and 2010 it works properly. What is the new way to define some new alignments? Tomas Hala \installalign{lastcenter}{ % justified, but the last line should be centered \leftskip=0pt plus1fil \rightskip=0pt plus-1fil \parfillskip=0pt plus2fil \parindent0pt} \starttext \startalignment[lastcenter] \setupalign[lastcenter] \input knuth \stopalignment \stoptext