committing text and bib without figures until directory gets merged
added both CJS models to manual, awaiting merge to add code
added Dawid and Skene model to latent categorical chapter
proofreading corrections for marginalized discrete parameter chapter
removed manual from this branch and merged with develop
Merge pull request #1046 from stan-dev/bugfix/issue-866-vars-prefix

Fixes #866. Bugfix/issue 866 vars prefix
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
tweaked error messages
poisson_rng throws exception on lambda >= pow(2,30), along with modified
tests
Merge branch 'feature/issue-786-manual-2.5' of https://github.com/stan-dev/stan into feature/issue-786-manual-2.5
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Changed the definition of the upper bound for the mean, as suggested by
Bob
Lambda Upper bound = pow(2.0, 30.0)
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/issue-1065-index-traits
type trait metaprogram for index types added and tested
added value_type metaprogram with tests
replaced Eigen add-on for value type with metaprogram
removed EigenDenseBaseAddons and replaced usages with metaprograms index_type and value_type