Merge pull request #26 from borkweb/feedback-faves-and-flags

Show the other textarea only if "Other" is selected
Merge pull request #27 from borkweb/feedback-faves-and-flags

Fix some "other" bugs
Merge pull request #28 from borkweb/feedback-faves-and-flags

Use the config for default reasons
Show a confirmation message for flagging