Allow exceptions in ACP

[2018-07-29 12:33:55] <Nicofuma> rubencm, kinerity|phone: do you remember if we have a ticket about that? we should handle any exception thrown there[2018-07-29 12:35:14] <Nicofuma> the goal is to get ride of trigger_error so...[2018-07-29 12:42:34] <kinerity|phone> I believe there was talk of moving the ACP to Symfony[2018-07-29 12:42:44] <kinerity|phone> That would allow exceptions[2018-07-29 12:50:51] <Nicofuma> yep but it's gonna take a lot of time[2018-07-29 12:51:05] <Nicofuma> and I don't think we need that to allow exceptions[2018-07-29 12:51:20] <Nicofuma> there is already many places using them in the ext manager[2018-07-29 12:53:06] <kinerity|phone> Ah, well if it can be done, I think it would be beneficial. I'm not home right now, but do you want me to create a ticket later?[2018-07-29 12:56:48] <Nicofuma> yes please