Split up test/build commands to tell which specific step might be having

problems.

.travis.yml

@@ -1,4 +1,8 @@
 language: c
 compiler:
   - gcc
-script: ./bootstrap.sh && ./b2 -n && ./b2 -n -d0 status
+script:
+  - ./bootstrap.sh
+  - ./b2 -n
+  - cd status
+  - ./b2 -n -d0