add proxy support and custom location values to nginx.  fixes #901, fixes #916
minor regression update
fixes #974 add client_max_body_size
Merge branch 'nginx/proxy' of https://github.com/steverhoades/puphpet into steverhoades-nginx/proxy

Conflicts:
	archive/puphpet/puppet/nodes/Nginx.pp
Spacing; #1021
Spacing, missing $; #1021
Points template to new structure; #1021
Fixes checks on missing variables; #1021