Add some release notes.
Merge branch 'hotfix/0.16.0.8' into release/0.17

Conflicts:
    locale/cy/app.po
Remove survey variables added in error.
Merge branch 'hotfix/0.16.0.8' into release/0.17
Bumping Alaveteli version
Latest translations from Transifex
Merge branch 'release/0.17' into rails-3-develop

Conflicts:
    config/general.yml-example
    locale/cy/app.po