Make accept() throw more useful errors
Merge pull request #7822 from JuliaLang/sf/accepterrors

Make accept() throw more useful errors
Whoops, bashisms are a no-no
CATEGORY_DICT no longer exists, excise it from DocCheck's reality
argtype_decl_string -> argtype_decl
Merge pull request #7842 from JuliaLang/sf/doccheckfix

Fix DocCheck.jl
Add release-candidate-checklist make target

This attempts to document and automate a checklist for producing a
release candidate, to the extent that this is possible.
Add dependency on release and doc builds
Update manual checklist items
Run test suite as part of checklist
Run examples and benchmarks as part of checklist
Make source-dist tarballs
Remove examples check (already part of tests)
Add suggestions from @staticfloat
Add check if checklist produced dirty repo state
Replace hard-coded make with $(MAKE) variable
Bump juliadoc so that we run the proper version of julia when running doctests
Add a few more steps regarding packaging
Run DocCheck to detect undocumented items
Make target: release-candidate-checklist -> release-candidate