added rayleigh distribution with tests and doc in manual
removed extra manual file
fixed headers in manual for rayleigh distribution
decreased number of decimal places in rayleigh tests
used OperandsAndPartials for gradients of cdf for rayleigh distr
added missing using statement and missing rng test for rayleigh distr
all funshapes working, with existing modified so there is no rejection
adding tests for the rest of bugs_examples/vol3/funshapes
updating make target
adding back the target for Windows models
adding expected values to the funshapes tests
add minipage to fitem so that function args can have multiple lines
Merge pull request #120 from stan-dev/feature/bugs-shapes

Feature/bugs shapes
Merge pull request #103 from stan-dev/feature/add_rayleigh_distr

Feature/add rayleigh distr
Merge pull request #142 from jrnold/bugfix/manual-fitem-minipage

add minipage to fitem so that function args can have multiple lines
Merge pull request #140 from stan-dev/feature/makefile_issue

updating make targets for models
Merge branch 'develop' into feature/test-headers2