Correct suppression of branch for tagged version
Do not show the werl window

Make Wings3D appear more as a native application.

I have to include erl.exe to make this work, since erlexec spawn's erl
and not werl for detached processes.
Remove duplicate entries
ngs_ask without need to make a pull request for main devs.
This allows plugin writers (like me) to create they own controls to be used on Wings3d dialogs.

It was provided the sample in the wpc_test_ask.erl (in minimal_dialog and larg_dialog). Any wrong control name will result in the same kind of exception as the original code.
Merge branch 'mv/ask_addons' of http://github.com/Micheus/wings into mv/ask_addons