Update to headers-more 0.19 and fix the checksum
initial stab at installing nginx.org ubuntu packages
added nginx.org's yum repo as an attribute option for RHEL-alike package installs
Helps if I get my attributes right
Also helps if I don't mix up url and mirrorlist.
[COOK-2183] make adding nginx repo more cross platform
Merge remote-tracking branch 'hw/feature/nginx.org-ubuntu-packages' into repoadd
[repo_add] incorporate hw changes where possible
Merge pull request #77 from bbg-cookbooks/repoadd

[COOK-2183] Install nginx package from nginx yum repo Edit
Merge pull request #91 from tas50/COOK-2311

COOK-2311: Update to headers-more 0.19 and fix the checksum