Status of the mssm scripts for hand over to Felix

- added macro from Christian to add ad hoc shape uncertainties for input files.
- corresponding adaptations in uncertainty files (#[tail] key word added -- can be removed in doMSSM.py look for ana type 'tail').
- extended pattern, which governs picking up of files from github for further processing to be able to pick files with different postfix labels for different channels if required. 
- re-added fine binning now under the option --fine-binning.