Make logging available in IntelliJ between gradle clean and assemble (#929)

* Enforce absence of node from client rpc smokeTest classpath

client/rpc/src/smoke-test/kotlin/net/corda/kotlin/rpc/ValidateClasspathTest.kt

@@ -0,0 +1,27 @@
+package net.corda.kotlin.rpc
+
+import net.corda.core.div
+import org.junit.Test
+import java.io.File
+import java.nio.file.Path
+import java.nio.file.Paths
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class ValidateClasspathTest {
+    @Test
+    fun `node not on classpath`() {
+        val paths = System.getProperty("java.class.path").split(File.pathSeparatorChar).map { Paths.get(it) }
+        // First find core so that if node is there, it's in the form we expect:
+        assertFalse(paths.filter { it.contains("core" / "build") }.isEmpty())
+        assertTrue(paths.filter { it.contains("node" / "build") }.isEmpty())
+    }
+}
+
+private fun Path.contains(that: Path): Boolean {
+    val size = that.nameCount
+    (0..nameCount - size).forEach {
+        if (subpath(it, it + size) == that) return true
+    }
+    return false
+}