Created Makefile for translations moved translations

Makefile uses pybabel to extract translations and updates them.

TODO: missing is how to actually install pybabel
Fixed makefile

Now it correctly updates POT/po and js files when files change
Added translation for Start and End
Translated transport modes. Moved i18-next to config.js

Translation language is now configured in config.js
Added translations for different modes of transport

All GTFS modes are now supported