Sidebar message linkify

[ilovecherries]

This adds a link onto messages that link to the parent page of the message, is targetted at #35 but more changes can be made.

[y-ack]

y might appreciate if there were a setting for this to prevent accidental touching on clickscreen--
er, clicking when on touchscreen etc.
since it's such a large hit area.

[ilovecherries]

there's a setting for sidebar linkify now but it's a hack mostly, the better solution would be to replace all of the nodes instead of just swapping it with a CSS hack. also, with this CSS hack, it would be better if the aria-disabled attribute was set to true
edit: the linkify is disabled by default

[12Me21]

don't have to replace the nodes, just set/remove the href attribute depending on the setting, since <a> without href isn't considered a link

[ilovecherries]

don't have to replace the nodes, just set/remove the href attribute depending on the setting, since <a> without href isn't considered a link

could probably have a data attribute on the comments that stores the page id and then have that be applied to href when necessary

[y-ack]

has conflicts with master (needs rebase if active)