3072 bit RSA keys

[ftrodriguez]

This is a great tool. I'm wondering if you ever plan to add support for 3072 bit RSA keys. Thanks.

[TheBolt01]

You can type 3072 in the size field when making the key, even though that isn't on the list - and it will work.

sslmainwindow.cpp would just need this adding between line 31 & 32:
ui->comboBoxKeySize->addItem("3072",3072);