Change #include style

Header files are now always included with their path from the
project's root directory rather than the path relative to
the includer.

Change-Id: If39b8510eef8da00baf5fe88337c45dbdf8c766e
Refs: #3084
diff --git a/tests/integrated/wscript b/tests/integrated/wscript
index 21327a9..73158d8 100644
--- a/tests/integrated/wscript
+++ b/tests/integrated/wscript
@@ -8,5 +8,5 @@
         bld.program(name='test-%s' % name,
                     target=name,
                     source=[test],
-                    use='tests-base',
+                    use='tests-common',
                     install_path=None)