Accommodate new signatures better

[hoelzro]

Thanks to PR #151, we have some preliminary support for the new signatures feature coming in Perl 5.20. However, it would be nice if this support were on by default, and if it coped well with prototypes.

[zdm]

Subs folding stop working properly when set perl_no_subprototype_error = 1. Please, see screenshots:

All subs unfolded:

All folded:

[hoelzro]

@zdm Thanks for the report; the folds should be fixed in master

[mvgrimes]

I'm still seeing this issue even with the current master (c79550d).

Unfolded:

Folded:

My vim-perl related config:

setlocal foldmethod=syntax
let perl_fold=1
let perl_no_subprototype_error = 1

[hoelzro]

Thanks for the report; I've opened a new issue for it in #166

[zdm]

This issue can be closed according to latest changes.