THRIFT-2602:Fix missing dist files
Client: build process
Patch: jfarrell

Add all missing files to the dist package.
diff --git a/lib/php/test/Makefile.am b/lib/php/test/Makefile.am
index 1292b81..1119d3f 100755
--- a/lib/php/test/Makefile.am
+++ b/lib/php/test/Makefile.am
@@ -32,5 +32,7 @@
 clean-local:
 	$(RM) -r ./packages
 
-EXTRA_DIST = Test
+EXTRA_DIST = \
+	Test \
+	phpunit.xml