Update NEWS

Author: zdohnal

NEWS

@@ -17,6 +17,7 @@
 - temporary fix for error pop up message for IPP2.0+ attributes (https://github.com/zdohnal/system-config-printer/issues/122)
 - lpd queue names printed on the console (https://github.com/zdohnal/system-config-printer/issues/132)
 - use proper docstring (https://github.com/zdohnal/system-config-printer/pull/130)
+- remove deprecated SIGNAL_RUN_LAST (https://github.com/zdohnal/system-config-printer/pull/134)
 
 1.5.10 changes
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