This makes the HTML-docs an default-off option. Inline documentation
(`matrix-plot??`) is still available and HTML docs are available online.
Motivation: Get below the Hydra output size limit.
The build was failing on some machines because of a `find` command that
touched files in different orders on different machines.
That confused `make`s timestamp mechanism.
The sandboxed build was failing, because it relied heavily on
/usr/bin/env. This is fixed with a lot of shebang patching (both
to system packages and to sage-internal packages).
This "un-breaks" sage while also updating it to 8.0.
It compiles sage with its dependencies as one big pile, which is not
the best approach but definately better than nothing for now.
To be able to shrink the huge output pile a little, it also splits
docs from the rest of the output.
* pkgs: refactor needless quoting of homepage meta attribute
A lot of packages are needlessly quoting the homepage meta attribute
(about 1400, 22%), this commit refactors all of those instances.
* pkgs: Fixing some links that were wrongfully unquoted in the previous
commit
* Fixed some instances
The Sage derivation had texLive, the old TeX Live packaging which
is now marked as broken, as a build input. This replaces it by the
current TeX Live packaging.
However, the build remains broken. One of the problems can be
solved by patching the hashbangs at the beginning of build scripts,
but the build still gets stuck while building ncurses.
