Fix Latex Bug in display_estimation_results_table.m

Missing line break resulted in compilation errors
Add comments to make clear distinction between generalized distribution and user-imposed bound
Change minus_logged_prior_density.m to reflect new treatment of estimated and calibrated covariances
Change get_prior_info.m to reflect user-specified bounds. Also corrects LaTeX-code
Merge branch 'master' of https://github.com/DynareTeam/dynare
Merge branch 'get-prior-info-fixes'