1) check for restricted or extened var list
2) allow proper working will all GSA type of sample: prior, MC, posterior
remove spurious lines in Statement.cc
Properly handle case when post_metropolis=0: here steady_state must be added to smoothed variables.
cosmetic change
Merge pull request #725 from rattoma/gsa

fixes for smoother2histval and relative provisions
Clarify ambiguous printout in internals function

"Overall acceptance rate" could be read as over all chains.
Also capitalizes the name Matlab
Merge pull request #731 from JohannesPfeifer/explicit_internals

Clarify ambiguous printout in internals function
Clarify the role the prior bounds in the manual