DREAM: Dedicated software profile for testnode

because nodejs does not compile in testnode in webrunner

software/dream/software_testnode.cfg

+[buildout]
+extends =
+  software.cfg
+
+# nodejs installation script does not support too deep directory structure like
+# we can have when installing testnode in a webrunner. Since we do not need
+# nodejs for the simulation executor, we can simply disable this section
+[nodejs]
+recipe =
+location =
+
+[npm_install]
+recipe =