Merge remote-tracking branch 'origin/develop' into bugfix/issue-530-no-model-parameters
Getting feature #353.
ps_point::_fast_vector_copy and ps_point::_fast_matrix_copy now check for zero-byte sources.
Check for algorithm=fixed_param when there are no model parameters.
Merge remote-tracking branch 'origin/develop' into bugfix/issue-530-no-model-parameters
Merge branch 'develop' of https://github.com/stan-dev/stan into bugfix/issue-530-no-model-parameters
Manual now mentions that algorithm=fixed_param is mandatory when the parameters block is empty.
Merge branch 'develop' into bugfix/issue-530-no-model-parameters: moving test to CmdStan branch bugfix/issue-530-no-model-parameters

Conflicts:
	src/test/CmdStan/fixed_param_sampler_test.cpp
Merge pull request #570 from stan-dev/bugfix/issue-530-no-model-parameters

Fixes #530. Bugfix/issue 530 no model parameters
Merge branch 'develop' of https://github.com/stan-dev/stan into develop