reporting: change xTickLabels default to be first date, last date, and, if passed, the first date of the shade region. Accordingly, change the default of the tick rotation to be 0.

Should fix crashes on models with leads/lags of more than one on exogenous.

Closes #617

This commit is linked to 052faa2f and issue #613.

Add more explicit messages, fix typos in manual and add more explicit documentation for endval

Change disp() to errors in var_sample_moments.m

always transformed with leads and lags on one period only. Close issue #613

Matlab error message instead of crashing

Otherwise, the data moments that are required for estimating DSGE-VARs are set to an empty matrix instead of aborting. This will then lead to a cryptic crash in initial_estimation_checks.m due to matrix dimensions not agreeing.

reporting: for easier figure reference, by default save report figures as: pg%d_sec%d_row%d_col%d.tex

reporting: implement enlarge y limits for graph; requires a change in shading to get programmed ymin => using fill now