Open with Options dialog parses integer as decimal instead of hexadecimal by default

[xusheng6]

When I type "1000" into the image base input, it is treated as 0x3e8, instead of 0x1000. I think we should parse the value as hex by default

[plafosse]

Ideally here we should have instead of a QLineEdit we have our own BinjaNumericEdit control. This would automatically use ParseExpression on the backend and would also support automatic preview of the value to the right of the control.

[xusheng6]

Well this is actually not easy to do -- the settings view have many other integer inputs that is better parsed as decimal

[bpotchik]

Prepending 0x gives hex and without it you get a decimal. Regarding ParseExpression, it's not useful in this context as symbol information is not available. Since this is a common control used everywhere, I recommend not changing it's behavior.