Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/manual-patch
manual update for bug in sample program + acknowledgment for same
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/manual-patch
fixed descriptions environment in functions.tex for to_vector
Merge pull request #115 from stan-dev/feature/manual-patch

Feature/manual patch