first try to dynamically import harryplotter modules
list all available modules, move parser call to __init__ function
recursive file globbing
check if provided processor is valid
break if no x_expression provided.
explicitly fail if invalid input/analysis/output modules are provided.
No silent warning and continuing.
made input file argument required
more adaptions to import of modules
Merge branch 'master' into dynamicimport
parsed args_from_script instead args_from_script.split()
cycle instead iterate through predefined colors, use pcolor instead of imshow which supports
variable bin width
tabs instead of spaces and removed print statements
one more print statement
add argparse help after first parsing in a different way
Merge pull request #2 from artus-analysis/dynamicimport

Successfully tested in the Higgs analysis.