Bug fix: leading spaces in log

Fixes a bug where the leading spaces where removed in the log file if
the data to be logged where provided through a pipe
Layout of log data improved

In tables, align the number to the right to increase readability
Fixes #5

Parsing of arguments of the shell scripts completely reviewed and
updated for more robustness against wrong inputs. Parsing of arguments
is now always put a fct called parseInputParams()