Weblancet
Simplicity
We designed WebLancet to be as easy as possible to use. ....
Scalability
WebLancet is designed to be scalable and extendable beyond the limits of imagination. ....
Open source
WebLancet meets demand best as it is driven by community. ....
We designed WebLancet to be as easy as possible to use.

WebLancet doesn't have separate administrator panel. After You log in, all changes You do to the website, with special administrator button.