Better exception

[lyrixx]

refs : #759

[lyrixx]

Side note : I noticed you "implemented" your own logging system, http client, process runner.
I think it would have been better to rely more on symfony.
For example, I run the command -vvv to get all logs. But it didn't work since I had to use --debug.
Another exemple is the process handler, We could have much more information when a process failed

[henderkes]

That's a great idea, we will tackle it later.

[crazywhalecc]

I have plans to refactor the error log output to be more useful, but it will take time. For now I have included -v as a compatibility parameter that has the same effect as --debug.