Merge branch 'master' into martin

Conflicts:
scripts/richards_fv.m
update to mtoc doxygen filter
minor changes to doxygen generated documentation
optimized output for latex documentation, now we have "only" 355 pages
added parsing capabilities to mtoc filter:

'word' is written in typesetter font
`\sum\int\pi` is a latex formula
``\sum\int\pi`` is a latex formula block
added possibility to escape " or ` characters
excluded @code ... @endcode and @verbatim ... @endverbatim blocks
from post-processing by doxygen-filter
some more small bugfixes in mtoc doxygen filter

I really hope that this will have been the last bugs in the filter
make coordinate vectors store their data row-wise
make mtoc compile with newer gcc
small bugfix in mtoc
small documentation changes (LaTeX output disabled!)
move sample.conf -> doxygen/mtoc.conf
mtoc update: paragraph headers only if newline comes directly after double-colon
changed command "Arguments:" to "Parameters" and

"Return arguments:" to "Return values"
began commenting mtoc
went on commenting mtoc

Conflicts:

	3rd_party/mtoc/confscanner.rl
update to mtoc filter: added feature requests of Daniel Wirtz
update to mtoc filter: added feature requests of Daniel Wirtz
added gitignore file