Town of Wilton seal.WILTON — The Board of Selectpersons approved a contract Tuesday to pave several town streets and another to rebuild the retaining wall on Wilson Lake. The board also rejected the only bid submitted to repair windows and siding at the Town Office. Selectpersons awarded the paving contract to Spencer Group Paving LLC of Turner, the second lowest of four bidders. John Masse, foreman of the Wilton Public Works Department, recomme…