Fix issues to build successfully

[naheedsa]

@knro , Fixed errors. It was built successfully with latest changes.

[knro]

Please check the build errors as well:

for (int i = 0; i < RotatorSettingsNP.count(); i++)

You can change this to:

for (size_t i = 0; i < RotatorSettingsNP.count(); i++)

[naheedsa]

Please check the build errors as well:

for (int i = 0; i < RotatorSettingsNP.count(); i++)

You can change this to:

for (size_t i = 0; i < RotatorSettingsNP.count(); i++)

sure, the build errors on github?