5.4.8

* Regular Board
* (addition) linkbase="/boards" / define a link base for your board
links.  Must have a page set up that will show your specific boards;
must use pretty permalinks; don't end with a trailing slash; turns
?board=b into /boards/b (example); default is blank (disabled).
* (addition) trustedimg="" / comma separated list of trusted image hosts
(example: trustedimg="imgur.com,tinypic.com,memedad.com")  Domains in
this list will be the only domains that image URLs can be posted from
* (addition) untrusteddomain="" / comma separated list of untrusted
domains (example: untrusteddomain="9gag.com,buzzfeed.com") Domains in
this list can not be attached to posts.
* (addition) boardimage="" / URL to a logo for your board. (example:
boardimage="http://i.imgur.com/z0CghAh.jpg")
* (change) URL handling changed to properly incorporate non-http://
links (to add http:// if it isn't present, and we aren't looking at an
img url or a Youtube video URL/ID).
* (change) board list / home + rules + admin links moved to a
collapsible column located at top of boards.  Full board name displayed
(instead of shortname).