Separate script for locomotion, add import from po file

* Create script to import from Locamotion, with possibility to choose between local or remote repo.
* Add script to import single .po file (fix issue #102)
* Move functions to get CLI or GET parameter to Utils class with tests.
* Move readme to wiki
Merge pull request #147 from flodolo/improve_scripts

Separate script for locomotion, add import from po file