update NEWS

source/texk/web2c/luatexdir/NEWS

 
 This file is in the public domain.
 
+==============================================================
+Luatex Release 0.89.0 was released 2016020500 
+==============================================================
+
+No fundamental changes, just some fixes / improvements (and of course new bugglets).
+
+- New backend things:
+ \pdfvariable pkfixeddpi = integer % > 0 : use only default dpi (so one can do with one high res instance)
+ \pdfvariable ignoreunknownimages = integer % > 0 : ignore missing and inject something empty (to be used with care)
+  and one can do this:
+ \edef\foo{\pdfvariable foo}
+ \def \oof{foo}
+ \ifx\foo\oof don't fool me\fi
+ (side effect of no longer aborting on missing, so one implement a catch)
+
+
+
 
 ==============================================================
 Luatex Release 0.88.0 was released 2016011500