Constructor delegation is not allowed prior to C++11.

[pkok]

Instead of raising errors, G++ silently allows this on my system. Bugs that are introduced:

• vimba_cameraptr always equals NULL
• When printed, opened_ values from {0, 2, 106}

[miquelmassot]

Hi @pkok, first of all thanks for the contribution. I'm OK will all the changes except for the comment above.