MERLIN PARTNERS, LP and AAMAF, LP, Petitioners-Below, Appellants/Cross-Appellees, v. SWS GROUP, INC. and Hilltop Securities Holdings LLC, Respondents-Below, Appellees/Cross-Appellants, v. Lone Star Value Investors, LP and Lone Star Value Co-Invest II, LP, Petitioners-Below, Cross-Appellees.