Adjust result.sh to match new folder names
ENHANCEMENT: issue #18 and #4, installing runsolver

setup.py: During installation, setup.py tries to set up runsolver as a script
It
 * checks whether runsolver is already installed and copies this version (needs to be rethought)
or
 * download and installs runsolver from
http://www.cril.univ-artois.fr/~roussel/runsolver/runsolver-3.3.2.tar.bz2
or
 * if both fails, tells the user do download, install and add runsolver to $PATH

plot_param.py: Minor changes to interface
FIX: Experiment.get_best() returns correct trial