Changed default build type to Nightly.

releng/org.yakindu.sct.releng/build/build.properties

@@ -132,7 +132,7 @@ tarargs=
 ############## BUILD NAMING CONTROL ################
 # Type of build.  Used in naming the build output.  Typically this value is
 # one of I, N, M, S, ...
-buildType=I
+buildType=N
 
 # ID of the build.  Used in naming the build output.
 buildId=${buildTimestamp}