remove extra ';' which -Wpedanctic complains about

updated copyright header

Author: eddelbuettel

inst/include/Rcpp/Environment.h

@@ -3,6 +3,7 @@
 // Environment.h: Rcpp R/C++ interface class library -- access R environments
 //
 // Copyright (C) 2009 - 2013    Dirk Eddelbuettel and Romain Francois
+// Copyright (C) 2014           Dirk Eddelbuettel, Romain Francois and Kevin Ushey
 //
 // This file is part of Rcpp.
 //
@@ -358,7 +359,7 @@ typedef Environment_Impl<PreserveStorage> Environment ;
 inline Environment new_env(int size = 29) {
     Shield<SEXP> sizeSEXP(Rf_ScalarInteger(size));
     return R_NewHashedEnv(R_EmptyEnv, sizeSEXP);
-};
+}
 
 
 } // namespace Rcpp