Rewrite readme and use markdown format

README

-Preparing the Sources
-=========================
-
-Additional to the software mentioned in README you'll need the
-following programs installed on your system:
-
-  automake >= 1.9
-
-  autoconf >= 2.62
-
-  libtool
-
-Getting started
----------------
-
-If these preliminaries are met, you should run
-
-  dunecontrol all
-
-which will find all installed dune modules as well as all dune modules
-(not installed) which sources reside in a subdirectory of the current
-directory. Note that if dune is not installed properly you will either
-have to add the directory where the dunecontrol script resides (probably
-./dune-common/bin) to your path or specify the relative path of the script.
-
-On your project and all uninstalled DUNE source modules found the script
-will then calls the GNU autoconf/automake to create a ./configure-script
-and the Makefiles. Afterwards that configure script will be called and the
-modules will be build using make all
-
-Most probably you'll have to provide additional information to dunecontrol
-(e. g. compilers, configure options) and/or make options.
-
-The most convenient way is to use options files in this case. The files
-defining three variables:
-
-AUTOGEN_FLAGS    flags passed to autogen
-CONFIGURE_FLAGS  flags passed to configure
-MAKE_FLAGS       flags passed to make
-
-An example options file might look like this:
-
-#use this options to autogen, configure and make if no other options are given
-AUTOGEN_FLAGS="--ac=2.50 --ac=1.8" #Forces automake 2,50 and autoconf 1.8
-CONFIGURE_FLAGS="CXX=g++-3.4 --prefix=/install/path" #force g++-3.4 as compiler
-MAKE_FLAGS=install #Per default run make install instead of simply make
-
-If you save this information into example.opts you can path the opts file to
-dunecontrol via the --opts option, e. g.
-
-  dunecontrol --opts=example.opts all
-
-To get a full list of available configure flags just run
-
-  dunecontrol configure --help
-
-after running at least
-  dunecontrol autogen
-
-More info
----------
-
-See
-
-     dunecontrol --help
-
-for further options.
-
-
-The full build-system is described in the dune-common/doc/buildsystem (SVN version) or under share/doc/dune-common/buildsystem if you installed DUNE!
-

README.md

+DUNE-library
+============
+
+DUNE, the Distributed and Unified Numerics Environment is a modular toolbox
+for solving partial differential equations with grid-based methods.
+
+The main intention is to create slim interfaces allowing an efficient use of
+legacy and/or new libraries. Using C++ techniques DUNE allows to use very
+different implementation of the same concept (i.e. grid, solver, ...) under
+a common interface with a very low overhead.
+
+DUNE was designed with flexibility in mind. It supports easy discretization
+using methods, like Finite Elements, Finite Volume and also Finite
+Differences.
+
+dune-matrix-vector
+-------------------
+This module provides static algebra tools for matrices and vectors
+of the dune-common and dune-istl modules.
+
+More information
+----------------
+
+Check dune-common for more details concerning dependencies, known bugs,
+      license and installation.