k-value determination and updates
 - added 'best k-value determination' script
 - updated paths for the determination and comparison scripts
 - updated rootpy (fix for transparency
 - updated TopSVD imports
Merge pull request #67 from kreczko/k_value_determination_merged

k-value determination and updates
Updated recipe for soolin
Updated the cutflow script. Lumi is now scaled, the selection steps order fixed.
Plotting fixes/changes