Describe extra documentation (for the standard components of SAGE):
The following docs are included:
- gap-4r4.8
- gnuplot
- ipython
- linbox
- macaulay2
- maxima
- mpfr
- ntl
- numeric
- octave
- pari
- gmp-4.2.1
- kash
- matplotlib
- mwrank
- numpy
- python-2.5
- readline
- singular
- zodb
