Log Message:
Update to 1.236

Upstream changes:
1.236 Thu 22 June 2017
	Summary:
	- prevent Node->child from proceeding without a valid argument
	- make test pragma warning code enable -w to match warnings policy

1.234 Wed 21 June 2017
	Summary:
	- Prevent sub names like v10 from being version strings
	  (GitHub #65) (MOREGAN)

1.232 Wed 21 June 2017
	Summary:
	- add Changes entries forgotten in 1.230

1.230 Wed 21 June 2017
	Summary:
	- remove temporary fix introduced in 1.226
	- prevent possible regex on undefined scalar in
	  __current_token_is_forced_word

1.228 Tue 20 June 2017
	Summary:
	- keep PPI::Dumper from breaking Perl::Critic under cperl 5.27
	  (RURBAN)

1.226 Tue 20 June 2017
	Summary:
	- Fix test reliance on '.' in @INC (KENTNL)
	- temporary fix to keep an untested combination from blocking
	  Perl::Critic (https://github.com/chriscapaci)