replace ChiliProejct with OpenProject in configuration.yml.example
test_psql setup in database.yml.example is a comment now

This way `rake db:create:all` works when installing mysql but not postgresql.

-> a step to have an easier setup for beginners
Fixed bugs in the activity view appearing during the
adaption of meetings plugin to the acts_as_journalized
changes
Merge pull request #455 from opf/feature/rails3_fix_activity_view
Merge branch 'feature/rails3' into feature/rails3_group_assigned_issues

[skip ci]