Use JDK 8 as default for Netbeans config

[Eric Caspole]

Hi everybody,
I would like to request that the netbeans IDE config be completely 
changed to 1.8 as shown below. As use of Streams/Lambdas has crept into 
Graal, without this you have to manually set those projects to JDK 8 in 
the project settings box for each individual project which is a huge 
time waster.
Thanks,
Eric


$ hg diff mxtool/mx.py
diff -r ea318d3ac9cd mxtool/mx.py
--- a/mxtool/mx.py	Mon Aug 04 12:10:27 2014 -0400
+++ b/mxtool/mx.py	Tue Aug 05 15:29:05 2014 -0400
@@ -3928,8 +3928,8 @@
  # Space-separated list of extra javac options
  javac.compilerargs=
  javac.deprecation=false
-javac.source=1.7
-javac.target=1.7
+javac.source=1.8
+javac.target=1.8
  javac.test.classpath=\\
      ${javac.classpath}:\\
      ${build.classes.dir}