Make scons 'loadable_module' output consistent with make output location...

test/module/gyptest-default.py

Index: test/module/gyptest-default.py
===================================================================
--- test/module/gyptest-default.py	(revision 0)
+++ test/module/gyptest-default.py	(revision 0)
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+"""
+Verifies simple build of a "Hello, world!" program with loadable modules. The
+default for all platforms should be to output the loadable modules to the same
+path as the executable.
+"""
+
+import TestGyp
+
+test = TestGyp.TestGyp()
+
+test.run_gyp('module.gyp', chdir='src')
+
+test.build_all('module.gyp', chdir='src')
+
+expect = """\
+Hello from program.c
+Hello from lib1.c
+Hello from lib2.c
+"""
+test.run_built_executable('program', chdir='src', stdout=expect)
+
+test.pass_test()