Revisit model field max_length properties #495
Description
From anson.tiong:
Was there a reason for this limit? I'd like to give more flavortext for my event, but I'm limited to these 500 characters now
This specific example is for https://github.com/compserv/hknweb/blob/master/hknweb/events/models/event.py#L20, but we should revisit all the current restrictions on max_length on all our models even if this is a pretty extreme scenario.