Always allow reply as new topic, for users who can reply as new topic
fixes the highlight issue @coding-horror reported
Merge pull request #426 from ZogStriP/fix-highlight-issue

fixes the highlight issue @coding-horror reported
don't try to load airbrake if there is no config for it
amend airbrake location
Merge pull request #418 from tms/always-allow-reply-as-new

Always allow reply as new topic, for users who can reply as new topic