Allow entering parameters through the command line

[rgcmme]

The properties file includes some parameters that change (almost) every time the program is run.
It would be handy if those parameters could also be inserted through the command line instead of having to edit the properties file in every execution.

[dachafra]

This will be taken into account in the new version of the engine, it will be run like:
morph -m mapping -q query -p properties

where properties file have the database connection