added cdf_log to weibull distr
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
added cdf and cdf_log to uniform distr
added cdf_log to bernoulli distr
added function signatures with compiled model tests for all cdf_log functions for univariate continuous distributions

except chi square, gamma, trunc normal
Merge pull request #116 from stan-dev/feature/add_to_vector

Feature/add to vector. Fixes #30.
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
added missing using statements
added missing using statement and missing rng test for rayleigh distr
added cdf_log to beta_binomial distr
added cdf_log to binomial distr
added cdf_log to poisson distr
added cdf_log to neg_binomial distr
added function signatures with compile model tests for cdf_log of discrete distr

excep for orderd logistic and hypergeometric
added all cdf_logs to manual
manual update for bug in sample program + acknowledgment for same
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/manual-patch
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
fixed descriptions environment in functions.tex for to_vector
all funshapes working, with existing modified so there is no rejection