Prot# NN2211-1573: Liraglutide Effect & Action in Diabetes (LEAD3): Effect on Glycemic Control of Liraglutide vs Glimepiride in Type 2 Diabetes [A 52 Wk (w/ 52 Wk Opn-Lbl Extnsn), Dbl-Bld, Mltctr, Rndmzd, Prlll Stdy to Invstgt Sfty & Effccy] Trl Phs: 3a