A group of Muslims, Jews and Christians have joined to lay the foundation stone for a centre that will house places of worship for each religion in a symbol of interfaith dialogue in the German capital. Days after protests in Berlin over the conflict between Israelis and Palestinians in Gaza, and at a time when politicians are warning of rising anti-Semitism in Germany, the "House of One" offers a beacon of hope for dialogue, said its founders. "It is important that dramatic world conflicts can be discussed in the German capital and that people have a stage to highlight problems…