In this version the list of events was added, you can choose the event in which you
have to review the tickets also the points of sale will have the list of events, so they
know what tickets they can sell and activate.

Fixed unexpected closing errors, now you can use the app without fear of continuous closures.
For accesses, not only will they know when a ticket has already been used, but also how much
time has passed since it was used.

~vicente bertely