Add Array.prototype.peek() to core/array
Add Array.prototype.peek() to core/array

ashwinrayaprolu1984/ringojs,Transcordia/ringojs,ashwinrayaprolu1984/ringojs,ringo/ringojs,ringo/ringojs,ringo/ringojs,oberhamsi/ringojs,ringo/ringojs,oberhamsi/ringojs,ashwinrayaprolu1984/ringojs,Transcordia/ringojs,oberhamsi/ringojs,Transcordia/ringojs,ashwinrayaprolu1984/ringojs,Transcordia/ringojs