Put everything in a huge function
Uses function (inherits) from runOverAOD
Added configuration for single Photon analysis.

Command line arguments are accepted now as well, so it could be used for
all other analysis as well
process is returned to initialization script
get process in main script
get process in main script
updated documentation
renamed file
updated help message
Merge pull request #7 from kkiesel/master

UI change: pass configuration setting via command line