* Add an underlay for javascript, and add ikiwiki.js containing some utility
code.
* toggle: Stop embedding the full toggle code on each page using it, and
move it to toggle.js in the javascript underlay.
I noticed that ikiwiki/formatting was beilg rebuilt when any page changed.
This turned out to be because it contained a complex conditional
"enabled(foo) or enabled(bar)", and the conditional plugin did not notice
that this consisted only of enabled() tests, and copied it unchanged into
add_depends. Thus, the page's dependencies were satisfied by any page
change.
The fix is to beef up the parser so that it can handle that and more
complex conditionals, and detect if they consist only of such tests.
Upgrades to the new index format should be transparent.
The version field is 3, because 1 was the old textual index, 2 was the
pre-versioned format.
This also includes some efficiency improvements to index loading, by
not copying a hash and using a reference.
* teximg: The prefix is configurable, and has changed to not include the
nonstandard mhchem by default. (willu)
* teximg: dvipng is used if available to render images. Its output is
antialiased and better than dvips. If not available, the old dvips+convert
chain will be used. (willu)
* Drop suggests on texlive-science, add suggests on dvipng.
The locked pages configuration is moving to a locked_pages option in the
setup file, and the allowed attachments configuration to
allowed_attachments. The admin prefs page can still be used for these, but
that's depreacted and will only be shown if there's currently a value.
The fix for colons involved adding "./" to some urls. Due to the weird way
inline called urlto, these snuck into feed urls and permalinks. Fix it by
adding an optional third parameter to urlto.