Description:
------------
Currently one has to pass a bunch of options to phd to make it generate the files in the flavor one wants it.
When doing that repeatedly, it would help to have configuration files where phd would read its options from.

The config files could contain:
- general options, like indexing settings
- per-theme options, like output filename


[phd]
file=manual.xml
format=xhtml
index=false
verbose=false
language=de
color=true
highlighter=PhD_Highlighter_Geshi

[pearchunkedhtml]
outdir=build/{$language}/html/

[pearbightml]
outfile=build/$language/pear_manual_{$language}.html