Test with pypy, remove python dependencies from apt-get install

.travis.yml

@@ -2,11 +2,10 @@ language: python
 python:
   - "2.6"
   - "2.7"
-virtualenv:
-  system_site_packages: true
+  - "pypy"
 before_install:
  - sudo apt-get update -qq
- - sudo apt-get install -qq debhelper autotools-dev cups-ppdc libcups2-dev cups python-cups python-httplib2 imagemagick ghostscript
+ - sudo apt-get install -qq debhelper autotools-dev cups-ppdc libcups2-dev cups imagemagick ghostscript
  - pip install httplib2 pycups pytest-cov --use-mirrors
 install:
  - ./configure
@@ -20,7 +19,10 @@ script:
  - cd /usr/local/share/cloudprint-cups/
  - sudo chmod 777 .
  - sudo chmod -R o+rw testing/testfiles
- - sudo ./upgrade.py
+ - sudo touch /var/log/cups/cloudprint_log
+ - sudo chown $USER:lp /var/log/cups/cloudprint_log
+ - sudo chmod 660 /var/log/cups/cloudprint_log
+ - ./upgrade.py
  - sudo python -m compileall .
  - py.test -rxs --cov .
  - ls -al /tmp/