Added a prototype of Switchboard like recording app.
Improvements to the Spanish version.
Added support for disconnect codes in VIO. Varuous improvements to Switchboard app.
Cleaning and TTS text improvement.
More strict limit on allowed phone numbers in SW.
Allow only numerical DTMF in Switchboard app.
Even more restrictive setting.
Added a new message for Switchboard app.
Small changes
Fixing terminating calls in the Switchboard app.
Merge branch 'ptics_live' of github.com:UFAL-DSG/alex
Caching requests for directions and weather

The current time is rounded to minutes (floored, to be exact) so that
input parameters are not different on each request.
Added UNINT speech event. Transcriptions containing UNINT will be generally excluded from processing.
Merge pull request #30 from UFAL-DSG/request_caching

Caching requests for directions and weather
Not raising an exception when invalid phone number is called. Instead, an error is logged and a message to HUB is send.
Merge branch 'master' of github.com:UFAL-DSG/alex
Disabled the Dvorce city. It collides with a stop in Prague.
Fixed Google directions so it does not crash with German trains

If vehicle type is not given, vehicle "name" (e.g., "Long distance
train") is used instead.
Merge pull request #31 from UFAL-DSG/fix_german_trains

Fixed Google directions so it does not crash with German trains
wrapping main of add_cities_to_stops