updated news for release 0.9.4
updated news for release 0.9.4

svn path=/trunk/StrategoXT/; revision=4952

Apanatshka/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,Apanatshka/strategoxt,metaborg/strategoxt,Apanatshka/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,metaborg/strategoxt,metaborg/strategoxt,metaborg/strategoxt,lichtemo/strategoxt,lichtemo/strategoxt,lichtemo/strategoxt,metaborg/strategoxt