update as.shinystan.R

fixed error in mcmc.list conversion
update demo models

added mcmc.list demo using MCMChpoisson
added MCMChpoisson demo model

MCMChpoisson_demo_shinystan.rda
add imports gtools and shinyBS

tools for sorting functions, shinyBS for ui components
update SHINYstan_helpers.R
update server_files

-reorganize
-add save settings functions
-add dynamic ui components
update server_files

-reorganize
-add save settings functions
-add dynamic ui components
update css files
update R/

- add functions get_stanfit_param_dims, Librarian
improve stan2shinystan.R

-only use parameter names for saved parameters
ok