* verilog-mode.el (verilog-at-struct-p): Support "signed" and

* verilog-mode.el (verilog-at-struct-p): Support "signed" and
"unsigned" structs.

(verilog-leap-to-head, verilog-backward-token): Handle "disable
fork" statement better.

* verilog-mode.el (verilog-auto-insert-lisp, verilog-delete-auto)
(verilog-delete-empty-auto-pair, verilog-library-filenames): Fix
AUTOINSERTLISP to support insert-file.  Reported by Clay Douglass.

(verilog-auto-inst, verilog-auto-star-safe)
(verilog-delete-auto-star-implicit, verilog-read-sub-decls): Fix
removing "// Interfaces" when saving .* expansions.  Reported by
Pierre-David Pfister.