Merge branch 'nine_travis_group_instead_popd' of git://github.com/vru…

…tsky/buildbot into nine

.travis.yml

@@ -76,9 +76,9 @@ install:
   - "[ $TWISTED = latest ] || pip install Twisted==$TWISTED"
   - "[ $SQLALCHEMY = latest ] || pip install sqlalchemy==$SQLALCHEMY"
   - "[ $SQLALCHEMY_MIGRATE = latest ] || pip install sqlalchemy-migrate==$SQLALCHEMY_MIGRATE"
-  - pushd master; python setup.py develop; popd
-  - pushd slave;  python setup.py develop; popd
-  - pushd www;    python setup.py develop; popd
+  - (cd master; python setup.py develop)
+  - (cd slave;  python setup.py develop)
+  - (cd www;    python setup.py develop)
   # mock is preinstalled on Travis
   # txgithub requires Twisted >= 12.3.0, which doesn't work on Python 2.5.
   - "[ $TRAVIS_PYTHON_VERSION = '2.5' ] || pip install txgithub"