Now that runner is invoked via the rails command and not directly from the script directory, it's more important to cd to the app directory in order to pick up the bundler gemfile. Fixes #964.
Merge branch 'fix-cron-bundler-gemfile' into rails-3-develop
Merge branch 'rails-3-develop' of ssh://git.mysociety.org/data/git/public/alaveteli into rails-3-develop
Merge branch 'rails-3-develop' into release/0.11
Merge branch 'release/0.11' of ssh://git.mysociety.org/data/git/public/alaveteli into release/0.11
Merge branch 'release/0.11' into wdtk-upgrade-test
Merge branch 'wdtk-upgrade-test' of ssh://git.mysociety.org/data/git/public/alaveteli into wdtk-upgrade-test