Move non-environment parts of community patch into separate directory
Massive tweak to index texture font weight to match originals

I wasn't going to go to this length originally, but I want to correct an
error in the English version and don't want it to look out of place.

The bold setting in The GIMP/Pango is quite a bit heavier than the
originals, and trying to set a specific font weight doesn't seem to work
for whatever reason. I was able to use a convolution matrix to very
closely match the originals, though it mucked up for coloured text since
it didn't add up to 1 (and making it add up to 1 would necessarily
involve blurring it, which isn't what I'm after), so I had to do some
trickery duplicating, moving and re-combining the layers.
Implement balanced word wrapping for index images

This makes any lines that get wrapped balanced so that every line is of
a similar length. Explicit newlines in the source are not balanced, only
lines that get wrapped.

This should stop some of the titles wrapping at silly places, like:

"Journal Entry from Dr Sanchez
3"
communitypatch: Fix for mislabelled index on endurance emphasis document