3810-193 Aveiro, Portugal; jbastos@av.it.pt 5 Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; jonathan@ua.pt * Correspondence: xin.li@upm.es; Tel.: +34-914-524-900 (ext. 20794) Academic Editor: Jaime Lloret Mauri Received: 16 January 2017; Accepted...