cosmetic changes
modified linear restrictions functions for constant VARs
cosmetic changes
Selection of VAR parameter names passed to a function
Implementation of various VAR priors (WIP)
Added help lines for setting priors outside a model file
Analytic posterior mode for constant BVARs
bug in bee_gate removed

Bee_gate ignored the settings of Time, function evaluations, iterations
and so on because of a missing folder. Credits to Kostas Theodoridis for
reporting the problem.
More explicit return message after optimization
cosmetic changes