Top entry field should enable tabbing through name spaces

[HarryDC]

When entering a type in the edit field it always fills with the next best complete type, ie. it goes from, NamespaceA::Namesp to NamespaceA::NamespaceB::ClassName, we have a fairly large namespace hierarchy and it would be much more convenient to be able to tab through the namespaces up to the double colon. i.e. from Name <tab> to NamespaceA:: <tab> to NamespaceA::NamespaceB:: and so forth.

In the reverse it might helpful to be able to navigate backwards in a similar way i.e. on delete don't delete the complete typename but only up to the preceding double colon. E.g. From NamespaceA::NamespaceB::ClassName via <del> to NamespaceA::NamespaceB::

[egraether]

Fixed with 0.7.1.18
Thanks for the suggestion, I like it a lot! Implemented as proposed.