added vector views to-do
Merge branch 'master' of https://github.com/stan-dev/stan
rstan makefile add buildtest
Merge branch 'master' of https://github.com/stan-dev/stan
more to-do items for 1.2.1
Fixed return value when distribution is constant
index references work
added method as.mcmc.list
Merge pull request #24 from jrnold/hyperindex

hyperref index links
rstan doc for stanmodel-sammpling
Merge branch 'master' of https://github.com/stan-dev/stan
Merge pull request #26 from jrnold/rstan-asmcmclist-s4

added S4 method as.mcmc.list for stanfit, doc needed
rstan: add as.mcmc.list and replace \cr with \r
updating test_fixture to test for zero length vectors
updating handling of length 0 vectors for normal_cdf
Added an option to display autocorrelations after the summary display.
added generalization of VectorView as seq_view in math/seq_view with tests
Merge branch 'master' of https://github.com/stan-dev/stan
adding a STAN_HOME variable
templated scalar and propto in generated log_prob