Add ids to filter
Add sx--user-@name function to sx.el
Implement commenting on anything.
Old refresh bug
new sx--get-post bug
Old recentering bug

We sometimes get an error because we're recentering a window that's not
selected.
Several bug fixes to commenting logic.
A bug fix on the dataset.

The question-list--dataset is now a list, not a vector.
Merge branch 'voting' into commenting
Add keybind for commenting.
Merge pull request #95 from vermiculus/commenting

Commenting