By Angeliki Koutantou and Tuvan Gumrukcu ATHENS (Reuters) -Greece and Turkey on Thursday agreed to reboot their relations, establishing a roadmap designed to usher in a new era of closer ties between the two NATO allies but historical enemies. In a landmark visit of Turkish President Tayyip Erdogan to Greece, the longtime sparring partners agreed to focus on pursuing good neighbourly relations, keep open channels of communication, seek military confidence-building measures to eliminate sources of tension, boost trade volumes and work on issues which have kept them apart, notably in the Aegean …