Revert to default build dirs, add missing projects

libraries/kotlin.test/js/it/build.gradle

@@ -10,6 +10,9 @@ dependencies {
     compile project(':kotlin-test:kotlin-test-js')
 }
 
+// package.json contains direct links to the builddir
+buildDir = "$projectDir/build"
+
 [compileKotlin2Js, compileTestKotlin2Js]*.configure {
     kotlinOptions.moduleKind = "commonjs"
 }