Build on multiple processors

Author: pombredanne

.travis.yml

@@ -7,5 +7,5 @@ install:
     - source configure
 
 script:
-    - py.test -vs src tests/commoncode tests/extractcode tests/textcode tests/typecode tests/cluecode tests/licensedcode/test_detect.py tests/licensedcode/test_index.py tests/licensedcode/test_legal.py tests/licensedcode/test_models.py
+    - py.test -n 2 -vs src tests/commoncode tests/extractcode tests/textcode tests/typecode tests/cluecode tests/licensedcode/test_detect.py tests/licensedcode/test_index.py tests/licensedcode/test_legal.py tests/licensedcode/test_models.py