Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
Merge branch 'develop' of https://github.com/stan-dev/stan into develop
added reset for function signatures in the stan compiler
remove template<> specification on int-only functions
fixes all three points of issue #723
Merge branch 'develop' of https://github.com/stan-dev/stan into bugfix/issue-723-functions-in-23
hopefully final patch for issue #723 with model test and moving scope of reset on symbol table to the parser from the compiler
adding int_fun that .gitignore previously masked
Merge pull request #732 from stan-dev/bugfix/issue-723-functions-in-23

Fixes #723. Bugfix/issue 723 functions in v2.3.0